* via82xx: unreliable audio, strange mixer behavior
@ 2008-11-20 17:04 Forest Bond
2008-11-21 11:59 ` Takashi Iwai
0 siblings, 1 reply; 9+ messages in thread
From: Forest Bond @ 2008-11-20 17:04 UTC (permalink / raw)
To: alsa-devel
Hi,
I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
Here are the symptoms:
Audio goes away after a semi-random interval. Sometimes it returns after
`modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
seems to take a full reboot.
This looks similar to:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
Some folks think that this kind of issue is triggered by audio volume being
above a certain level. I'm not entirely sure if this is true, but I think it
is. One time, I apparently triggered the issue by unplugging and replugging the
audio cable from the mainboard during playback.
Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
The volume does get louder when I turn up that mixer control, but it never goes
away entirely when I turn the volume to zero. Mute works as expected.
This issue is impacting a significant project for me and my company. I'm
willing to spend as much time as it takes to debug, and I'm fairly technical. I
can also offer a bounty of some sort, if that interests anyone.
Can anyone offer any input?
Thanks,
Forest
--
Forest Bond
http://www.alittletooquiet.net
http://www.pytagsfs.org
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: via82xx: unreliable audio, strange mixer behavior
2008-11-20 17:04 via82xx: unreliable audio, strange mixer behavior Forest Bond
@ 2008-11-21 11:59 ` Takashi Iwai
2008-11-21 12:08 ` Forest Bond
0 siblings, 1 reply; 9+ messages in thread
From: Takashi Iwai @ 2008-11-21 11:59 UTC (permalink / raw)
To: Forest Bond; +Cc: alsa-devel
At Thu, 20 Nov 2008 12:04:09 -0500,
Forest Bond wrote:
>
> Hi,
>
> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
>
> http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
>
> Here are the symptoms:
>
> Audio goes away after a semi-random interval. Sometimes it returns after
> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
> seems to take a full reboot.
>
> This looks similar to:
>
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
>
> Some folks think that this kind of issue is triggered by audio volume being
> above a certain level. I'm not entirely sure if this is true, but I think it
> is. One time, I apparently triggered the issue by unplugging and replugging the
> audio cable from the mainboard during playback.
>
> Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
> The volume does get louder when I turn up that mixer control, but it never goes
> away entirely when I turn the volume to zero. Mute works as expected.
The volume 0 doesn't always mean the mute on several hardwares.
So this can be irrelevant if it happens always.
I vaguely remember about the low-power mode of some codec chips.
Which codec chip does your system have? Please run alsa-info.sh with
--no-upload option, and attach the output file.
Takashi
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: via82xx: unreliable audio, strange mixer behavior
2008-11-21 11:59 ` Takashi Iwai
@ 2008-11-21 12:08 ` Forest Bond
2008-11-21 12:54 ` Takashi Iwai
0 siblings, 1 reply; 9+ messages in thread
From: Forest Bond @ 2008-11-21 12:08 UTC (permalink / raw)
To: Takashi Iwai; +Cc: alsa-devel
[-- Attachment #1.1.1: Type: text/plain, Size: 1736 bytes --]
Hi,
On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote:
> At Thu, 20 Nov 2008 12:04:09 -0500,
> Forest Bond wrote:
>>
>> Hi,
>>
>> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
>>
>> http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
>>
>> Here are the symptoms:
>>
>> Audio goes away after a semi-random interval. Sometimes it returns after
>> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
>> seems to take a full reboot.
>>
>> This looks similar to:
>>
>> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
>>
>> Some folks think that this kind of issue is triggered by audio volume being
>> above a certain level. I'm not entirely sure if this is true, but I think it
>> is. One time, I apparently triggered the issue by unplugging and replugging the
>> audio cable from the mainboard during playback.
>>
>> Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
>> The volume does get louder when I turn up that mixer control, but it never goes
>> away entirely when I turn the volume to zero. Mute works as expected.
>
> The volume 0 doesn't always mean the mute on several hardwares.
> So this can be irrelevant if it happens always.
>
> I vaguely remember about the low-power mode of some codec chips.
> Which codec chip does your system have? Please run alsa-info.sh with
> --no-upload option, and attach the output file.
The output would be the same as what was already uploaded, right? I've attached
that output here for your convenience.
Thanks,
Forest
--
Forest Bond
http://www.alittletooquiet.net
http://www.pytagsfs.org
[-- Attachment #1.1.2: alsa-info.sh.output --]
[-- Type: text/plain, Size: 24248 bytes --]
!!################################
!!ALSA Information Script v 0.4.52
!!################################
!!Script ran on: Wed Nov 19 19:00:52 UTC 2008
!!Linux Distribution
!!------------------
Ubuntu 8.04.1 \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 8.04.1"
!!Kernel Information
!!------------------
Kernel release: 2.6.24-21-generic
Operating System: GNU/Linux
Architecture: i686
Processor: unknown
SMP Enabled: Yes
!!ALSA Version
!!------------
Driver version: 1.0.16
Library version:
Utilities version: 1.0.15
!!Loaded ALSA modules
!!-------------------
snd_via82xx
!!Soundcards recognised by ALSA
!!-----------------------------
0 [V8237 ]: VIA8237 - VIA 8237
VIA 8237 with VIA1617A at 0xf000, irq 19
!!PCI Soundcards installed in the system
!!--------------------------------------
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
!!Advanced information - PCI Vendor/Device/Susbsystem ID's
!!--------------------------------------------------------
00:11.5 0401: 1106:3059 (rev 60)
Subsystem: 16f3:4170
!!Modprobe options (Sound related)
!!--------------------------------
snd-atiixp-modem: index=-2
snd-intel8x0m: index=-2
snd-via82xx-modem: index=-2
snd-usb-audio: index=-2
snd-usb-usx2y: index=-2
snd-usb-caiaq: index=-2
snd-cmipci: mpu_port=0x330 fm_port=0x388
!!Loaded sound module options
!!--------------------------
!!Module: snd_via82xx
ac97_clock : 48000
ac97_quirk : <NULL>
dxs_support : 5
enable : N
id : <NULL>
index : -1
joystick : N
mpu_port : 0
!!AC97 Codec information
!!---------------------------
--startcollapse--
0-0/0: VIA Technologies VIA1617A
PCI Subsys Vendor: 0x16f3
PCI Subsys Device: 0x4170
Revision : 0x00
Compat. Class : 0x00
Subsys. Vendor ID: 0xffff
Subsys. ID : 0xffff
Capabilities : -headphone out-
DAC resolution : 18-bit
ADC resolution : 18-bit
3D enhancement : IC Ensemble/KS Waves
Current setup
Mic gain : 0dB [ 0dB]
POP path : pre 3D
Sim. stereo : off
3D enhancement : off
Loudness : off
Mono output : MIX
Mic select : Mic1
ADC/DAC loopback : off
Double rate slots: 10/11
Extended ID : codec=0 rev=2 LDAC SDAC CDAC DSA=0 SPDIF DRA VRA
Extended status : SPCV LDAC SDAC CDAC SPDIF=3/4 VRA
PCM front DAC : 48000Hz
PCM Surr DAC : 48000Hz
PCM LFE DAC : 48000Hz
PCM ADC : 48000Hz
SPDIF Control : Consumer PCM Copyright Category=0x22 Generation=1 Rate=48kHz
0:00 = 6d50
0:02 = 0808
0:04 = 9f1f
0:06 = 801f
0:08 = 0000
0:0a = 801e
0:0c = 801f
0:0e = 801f
0:10 = 9f1f
0:12 = 9f1f
0:14 = 0000
0:16 = 9f1f
0:18 = 0808
0:1a = 0000
0:1c = 0000
0:1e = 0000
0:20 = 0000
0:22 = 0000
0:24 = 0001
0:26 = 800f
0:28 = 09c7
0:2a = 05c1
0:2c = bb80
0:2e = bb80
0:30 = bb80
0:32 = bb80
0:34 = 0000
0:36 = 9f9f
0:38 = 9f9f
0:3a = 2a20
0:3c = 0000
0:3e = 0000
0:40 = 0000
0:42 = 0000
0:44 = 0000
0:46 = 0000
0:48 = 0000
0:4a = 0000
0:4c = 0000
0:4e = 0000
0:50 = 0000
0:52 = 0000
0:54 = 0000
0:56 = 0000
0:58 = 0000
0:5a = 0200
0:5c = 0000
0:5e = 0000
0:60 = 0000
0:62 = ffff
0:64 = ffff
0:66 = 0000
0:68 = 0000
0:6a = 0000
0:6c = 3760
0:6e = 0000
0:70 = 0000
0:72 = 0000
0:74 = 0004
0:76 = 0000
0:78 = 0070
0:7a = 0370
0:7c = 5649
0:7e = 4170
--endcollapse--
!!ALSA Device nodes
!!-----------------
crw-rw---- 1 root audio 116, 0 Nov 19 17:57 /dev/snd/controlC0
crw-rw---- 1 root audio 116, 24 Nov 19 17:57 /dev/snd/pcmC0D0c
crw-rw---- 1 root audio 116, 16 Nov 19 18:48 /dev/snd/pcmC0D0p
crw-rw---- 1 root audio 116, 25 Nov 19 17:57 /dev/snd/pcmC0D1c
crw-rw---- 1 root audio 116, 17 Nov 19 17:57 /dev/snd/pcmC0D1p
crw-rw---- 1 root audio 116, 1 Nov 19 17:57 /dev/snd/seq
crw-rw---- 1 root audio 116, 33 Nov 19 17:57 /dev/snd/timer
!!Aplay/Arecord output
!!------------
APLAY
**** List of PLAYBACK Hardware Devices ****
card 0: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
Subdevices: 3/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: V8237 [VIA 8237], device 1: VIA 8237 [VIA 8237]
Subdevices: 1/1
Subdevice #0: subdevice #0
ARECORD
**** List of CAPTURE Hardware Devices ****
card 0: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: V8237 [VIA 8237], device 1: VIA 8237 [VIA 8237]
Subdevices: 1/1
Subdevice #0: subdevice #0
!!Amixer output
!!-------------
!!-------Mixer controls for card 0 [V8237]
Card hw:0 'V8237'/'VIA 8237 with VIA1617A at 0xf000, irq 19'
Mixer name : 'VIA Technologies VIA1617A'
Components : 'AC97a:56494170'
Controls : 53
Simple ctrls : 38
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 23 [74%] [-12.00dB] [on]
Front Right: Playback 23 [74%] [-12.00dB] [on]
Simple mixer control 'Master Mono',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Headphone',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [off]
Front Right: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control '3D Control - Center',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 15
Mono: 0 [0%]
Simple mixer control '3D Control - Depth',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 15
Mono: 0 [0%]
Simple mixer control '3D Control - Switch',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 23 [74%] [0.00dB] [on]
Front Right: Playback 23 [74%] [0.00dB] [on]
Simple mixer control 'Surround',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [off]
Front Right: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Center',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Center/LFE Exchange',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'LFE',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Line',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Simple mixer control 'CD',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Simple mixer control 'Mic',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [-34.50dB] [off]
Front Left: Capture [on]
Front Right: Capture [on]
Simple mixer control 'Mic Boost ( 20dB)',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Mic Select',0
Capabilities: enum
Items: 'Mic1' 'Mic2'
Item0: 'Mic1'
Simple mixer control 'Video',0
Capabilities: cswitch cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Phone',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [-34.50dB] [off]
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'IEC958 Output',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'IEC958 Playback AC97-SPSA',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 3
Mono: 0 [0%]
Simple mixer control 'PC Speaker',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 15
Mono: Playback 0 [0%] [-45.00dB] [off]
Simple mixer control 'Aux',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Simple mixer control 'Mono Output Select',0
Capabilities: enum
Items: 'Mix' 'Mic'
Item0: 'Mix'
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch cswitch-joined
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 0 [0%] [0.00dB] [on]
Front Right: Capture 0 [0%] [0.00dB] [on]
Simple mixer control 'Mix',0
Capabilities: cswitch cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Mix Mono',0
Capabilities: cswitch cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Alternate Level to Surround Out',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Downmix LFE and Center to Front',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Downmix Surround to Front',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'External Amplifier',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Input Source Select',0
Capabilities: enum
Items: 'Input1' 'Input2'
Item0: 'Input1'
Simple mixer control 'Input Source Select',1
Capabilities: enum
Items: 'Input1' 'Input2'
Item0: 'Input1'
Simple mixer control 'Smart 5.1 Select',0
Capabilities: enum
Items: 'LineIn Mic1' 'LineIn Mic1 Mic3' 'Surr LFE/C Mic3' 'LineIn LFE/C Mic3' 'LineIn Mic2' 'LineIn Mic2 Mic1' 'Surr LFE Mic1' 'Surr LFE Mic1 Mic2'
Item0: 'LineIn Mic1'
Simple mixer control 'VIA DXS',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [-48.00dB]
Front Right: Playback 31 [100%] [-48.00dB]
Simple mixer control 'VIA DXS',1
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [-48.00dB]
Front Right: Playback 31 [100%] [-48.00dB]
Simple mixer control 'VIA DXS',2
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [-48.00dB]
Front Right: Playback 31 [100%] [-48.00dB]
Simple mixer control 'VIA DXS',3
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [-48.00dB]
Front Right: Playback 31 [100%] [-48.00dB]
!!Alsactl output
!!-------------
--startcollapse--
state.V8237 {
control.1 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Center/LFE Exchange'
value false
}
control.2 {
comment.access 'read write'
comment.type ENUMERATED
comment.count 1
comment.item.0 'LineIn Mic1'
comment.item.1 'LineIn Mic1 Mic3'
comment.item.2 'Surr LFE/C Mic3'
comment.item.3 'LineIn LFE/C Mic3'
comment.item.4 'LineIn Mic2'
comment.item.5 'LineIn Mic2 Mic1'
comment.item.6 'Surr LFE Mic1'
comment.item.7 'Surr LFE Mic1 Mic2'
iface MIXER
name 'Smart 5.1 Select'
value 'LineIn Mic1'
}
control.3 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Master Playback Switch'
value true
}
control.4 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'Master Playback Volume'
value.0 23
value.1 23
}
control.5 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Center Playback Switch'
value false
}
control.6 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 31'
iface MIXER
name 'Center Playback Volume'
value 0
}
control.7 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'LFE Playback Switch'
value false
}
control.8 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 31'
iface MIXER
name 'LFE Playback Volume'
value 0
}
control.9 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 2
iface MIXER
name 'Surround Playback Switch'
value.0 false
value.1 false
}
control.10 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'Surround Playback Volume'
value.0 0
value.1 0
}
control.11 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Headphone Playback Switch'
value false
}
control.12 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'Headphone Playback Volume'
value.0 0
value.1 0
}
control.13 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Master Mono Playback Switch'
value false
}
control.14 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 31'
iface MIXER
name 'Master Mono Playback Volume'
value 0
}
control.15 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'PC Speaker Playback Switch'
value false
}
control.16 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 15'
iface MIXER
name 'PC Speaker Playback Volume'
value 0
}
control.17 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Phone Playback Switch'
value false
}
control.18 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 31'
iface MIXER
name 'Phone Playback Volume'
value 0
}
control.19 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Mic Playback Switch'
value false
}
control.20 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 31'
iface MIXER
name 'Mic Playback Volume'
value 0
}
control.21 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Mic Boost ( 20dB)'
value false
}
control.22 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Line Playback Switch'
value false
}
control.23 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'Line Playback Volume'
value.0 0
value.1 0
}
control.24 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'CD Playback Switch'
value false
}
control.25 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'CD Playback Volume'
value.0 0
value.1 0
}
control.26 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Aux Playback Switch'
value false
}
control.27 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'Aux Playback Volume'
value.0 0
value.1 0
}
control.28 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'PCM Playback Switch'
value true
}
control.29 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'PCM Playback Volume'
value.0 23
value.1 23
}
control.30 {
comment.access 'read write'
comment.type ENUMERATED
comment.count 2
comment.item.0 Mic
comment.item.1 CD
comment.item.2 Video
comment.item.3 Aux
comment.item.4 Line
comment.item.5 Mix
comment.item.6 'Mix Mono'
comment.item.7 Phone
iface MIXER
name 'Capture Source'
value.0 Mic
value.1 Mic
}
control.31 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Capture Switch'
value true
}
control.32 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 15'
iface MIXER
name 'Capture Volume'
value.0 0
value.1 0
}
control.33 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name '3D Control - Switch'
value false
}
control.34 {
comment.access 'read write'
comment.type ENUMERATED
comment.count 1
comment.item.0 Mix
comment.item.1 Mic
iface MIXER
name 'Mono Output Select'
value Mix
}
control.35 {
comment.access 'read write'
comment.type ENUMERATED
comment.count 1
comment.item.0 Mic1
comment.item.1 Mic2
iface MIXER
name 'Mic Select'
value Mic1
}
control.36 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 15'
iface MIXER
name '3D Control - Center'
value 0
}
control.37 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 15'
iface MIXER
name '3D Control - Depth'
value 0
}
control.38 {
comment.access read
comment.type IEC958
comment.count 1
iface MIXER
name 'IEC958 Playback Con Mask'
value '0fff000f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
}
control.39 {
comment.access read
comment.type IEC958
comment.count 1
iface MIXER
name 'IEC958 Playback Pro Mask'
value cf00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
}
control.40 {
comment.access 'read write'
comment.type IEC958
comment.count 1
iface MIXER
name 'IEC958 Playback Default'
value '0082000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
}
control.41 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'IEC958 Playback Switch'
value false
}
control.42 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 3'
iface MIXER
name 'IEC958 Playback AC97-SPSA'
value 0
}
control.43 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Alternate Level to Surround Out'
value false
}
control.44 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Downmix LFE and Center to Front'
value false
}
control.45 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'Downmix Surround to Front'
value false
}
control.46 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'External Amplifier'
value false
}
control.47 {
comment.access 'read write'
comment.type ENUMERATED
comment.count 1
comment.item.0 Input1
comment.item.1 Input2
iface MIXER
name 'Input Source Select'
value Input1
}
control.48 {
comment.access 'read write'
comment.type ENUMERATED
comment.count 1
comment.item.0 Input1
comment.item.1 Input2
iface MIXER
name 'Input Source Select'
index 1
value Input1
}
control.49 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 1
iface MIXER
name 'IEC958 Output Switch'
value false
}
control.50 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'VIA DXS Playback Volume'
value.0 31
value.1 31
}
control.51 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'VIA DXS Playback Volume'
index 1
value.0 31
value.1 31
}
control.52 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'VIA DXS Playback Volume'
index 2
value.0 31
value.1 31
}
control.53 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'VIA DXS Playback Volume'
index 3
value.0 31
value.1 31
}
}
--endcollapse--
!!All Loaded Modules
!!------------------
Module
snd_via82xx
gameport
snd_ac97_codec
ac97_bus
snd_mpu401_uart
snd_rawmidi
via
drm
video
output
sbs
sbshc
container
ipv6
joydev
pl2303
usbserial
evdev
af_packet
serio_raw
psmouse
hci_usb
bluetooth
snd_pcm_oss
snd_mixer_oss
snd_pcm
snd_page_alloc
snd_seq
snd_timer
snd_seq_device
snd
soundcore
i2c_viapro
i2c_core
button
shpchp
pci_hotplug
via_agp
agpgart
usbtouchscreen
usbhid
hid
ext3
jbd
mbcache
sg
sd_mod
pata_via
via_rhine
mii
ehci_hcd
uhci_hcd
pata_acpi
ata_generic
usbcore
libata
scsi_mod
fan
fbcon
tileblit
font
bitblit
softcursor
[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 189 bytes --]
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: via82xx: unreliable audio, strange mixer behavior
2008-11-21 12:08 ` Forest Bond
@ 2008-11-21 12:54 ` Takashi Iwai
2008-11-21 16:32 ` Forest Bond
0 siblings, 1 reply; 9+ messages in thread
From: Takashi Iwai @ 2008-11-21 12:54 UTC (permalink / raw)
To: Forest Bond; +Cc: alsa-devel
At Fri, 21 Nov 2008 07:08:23 -0500,
Forest Bond wrote:
>
> Hi,
>
> On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote:
> > At Thu, 20 Nov 2008 12:04:09 -0500,
> > Forest Bond wrote:
> >>
> >> Hi,
> >>
> >> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
> >>
> >> http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
> >>
> >> Here are the symptoms:
> >>
> >> Audio goes away after a semi-random interval. Sometimes it returns after
> >> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
> >> seems to take a full reboot.
> >>
> >> This looks similar to:
> >>
> >> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
> >>
> >> Some folks think that this kind of issue is triggered by audio volume being
> >> above a certain level. I'm not entirely sure if this is true, but I think it
> >> is. One time, I apparently triggered the issue by unplugging and replugging the
> >> audio cable from the mainboard during playback.
> >>
> >> Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
> >> The volume does get louder when I turn up that mixer control, but it never goes
> >> away entirely when I turn the volume to zero. Mute works as expected.
> >
> > The volume 0 doesn't always mean the mute on several hardwares.
> > So this can be irrelevant if it happens always.
> >
> > I vaguely remember about the low-power mode of some codec chips.
> > Which codec chip does your system have? Please run alsa-info.sh with
> > --no-upload option, and attach the output file.
>
> The output would be the same as what was already uploaded, right? I've attached
> that output here for your convenience.
Thanks, it's always better to post the content than a URL.
Any chance to try the later version of alsa-driver?
Yours looks pretty old.
Takashi
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: via82xx: unreliable audio, strange mixer behavior
2008-11-21 12:54 ` Takashi Iwai
@ 2008-11-21 16:32 ` Forest Bond
2008-11-21 16:36 ` Takashi Iwai
0 siblings, 1 reply; 9+ messages in thread
From: Forest Bond @ 2008-11-21 16:32 UTC (permalink / raw)
To: Takashi Iwai; +Cc: alsa-devel
[-- Attachment #1.1: Type: text/plain, Size: 2240 bytes --]
Hi Takashi,
On Fri, Nov 21, 2008 at 01:54:43PM +0100, Takashi Iwai wrote:
> At Fri, 21 Nov 2008 07:08:23 -0500,
> Forest Bond wrote:
> > On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote:
> > > At Thu, 20 Nov 2008 12:04:09 -0500,
> > > Forest Bond wrote:
> > >>
> > >> Hi,
> > >>
> > >> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
> > >>
> > >> http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
> > >>
> > >> Here are the symptoms:
> > >>
> > >> Audio goes away after a semi-random interval. Sometimes it returns after
> > >> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
> > >> seems to take a full reboot.
> > >>
> > >> This looks similar to:
> > >>
> > >> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
> > >>
> > >> Some folks think that this kind of issue is triggered by audio volume being
> > >> above a certain level. I'm not entirely sure if this is true, but I think it
> > >> is. One time, I apparently triggered the issue by unplugging and replugging the
> > >> audio cable from the mainboard during playback.
> > >>
> > >> Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
> > >> The volume does get louder when I turn up that mixer control, but it never goes
> > >> away entirely when I turn the volume to zero. Mute works as expected.
> > >
> > > The volume 0 doesn't always mean the mute on several hardwares.
> > > So this can be irrelevant if it happens always.
> > >
> > > I vaguely remember about the low-power mode of some codec chips.
> > > Which codec chip does your system have? Please run alsa-info.sh with
> > > --no-upload option, and attach the output file.
> >
> > The output would be the same as what was already uploaded, right? I've attached
> > that output here for your convenience.
>
> Thanks, it's always better to post the content than a URL.
>
> Any chance to try the later version of alsa-driver?
> Yours looks pretty old.
I can try this a bit later today. I'll report the results ASAP.
Thanks,
Forest
--
Forest Bond
http://www.alittletooquiet.net
http://www.pytagsfs.org
[-- Attachment #1.2: Digital signature --]
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[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: via82xx: unreliable audio, strange mixer behavior
2008-11-21 16:32 ` Forest Bond
@ 2008-11-21 16:36 ` Takashi Iwai
2008-11-24 20:03 ` Forest Bond
0 siblings, 1 reply; 9+ messages in thread
From: Takashi Iwai @ 2008-11-21 16:36 UTC (permalink / raw)
To: Forest Bond; +Cc: alsa-devel
At Fri, 21 Nov 2008 11:32:56 -0500,
Forest Bond wrote:
>
> On Fri, Nov 21, 2008 at 01:54:43PM +0100, Takashi Iwai wrote:
> > At Fri, 21 Nov 2008 07:08:23 -0500,
> > Forest Bond wrote:
> > > On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote:
> > > > At Thu, 20 Nov 2008 12:04:09 -0500,
> > > > Forest Bond wrote:
> > > >>
> > > >> Hi,
> > > >>
> > > >> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
> > > >>
> > > >> http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
> > > >>
> > > >> Here are the symptoms:
> > > >>
> > > >> Audio goes away after a semi-random interval. Sometimes it returns after
> > > >> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
> > > >> seems to take a full reboot.
> > > >>
> > > >> This looks similar to:
> > > >>
> > > >> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
> > > >>
> > > >> Some folks think that this kind of issue is triggered by audio volume being
> > > >> above a certain level. I'm not entirely sure if this is true, but I think it
> > > >> is. One time, I apparently triggered the issue by unplugging and replugging the
> > > >> audio cable from the mainboard during playback.
> > > >>
> > > >> Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
> > > >> The volume does get louder when I turn up that mixer control, but it never goes
> > > >> away entirely when I turn the volume to zero. Mute works as expected.
> > > >
> > > > The volume 0 doesn't always mean the mute on several hardwares.
> > > > So this can be irrelevant if it happens always.
> > > >
> > > > I vaguely remember about the low-power mode of some codec chips.
> > > > Which codec chip does your system have? Please run alsa-info.sh with
> > > > --no-upload option, and attach the output file.
> > >
> > > The output would be the same as what was already uploaded, right? I've attached
> > > that output here for your convenience.
> >
> > Thanks, it's always better to post the content than a URL.
> >
> > Any chance to try the later version of alsa-driver?
> > Yours looks pretty old.
>
> I can try this a bit later today. I'll report the results ASAP.
BTW, try the one from the URL below instead of 1.0.18a.
This contains the newest alsa-driver snapshot:
ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
Takashi
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: via82xx: unreliable audio, strange mixer behavior
2008-11-21 16:36 ` Takashi Iwai
@ 2008-11-24 20:03 ` Forest Bond
2008-11-24 23:09 ` Takashi Iwai
0 siblings, 1 reply; 9+ messages in thread
From: Forest Bond @ 2008-11-24 20:03 UTC (permalink / raw)
To: Takashi Iwai; +Cc: alsa-devel
[-- Attachment #1.1: Type: text/plain, Size: 3050 bytes --]
Hi,
On Fri, Nov 21, 2008 at 05:36:49PM +0100, Takashi Iwai wrote:
> At Fri, 21 Nov 2008 11:32:56 -0500,
> Forest Bond wrote:
> >
> > On Fri, Nov 21, 2008 at 01:54:43PM +0100, Takashi Iwai wrote:
> > > At Fri, 21 Nov 2008 07:08:23 -0500,
> > > Forest Bond wrote:
> > > > On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote:
> > > > > At Thu, 20 Nov 2008 12:04:09 -0500,
> > > > > Forest Bond wrote:
> > > > >>
> > > > >> Hi,
> > > > >>
> > > > >> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
> > > > >>
> > > > >> http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
> > > > >>
> > > > >> Here are the symptoms:
> > > > >>
> > > > >> Audio goes away after a semi-random interval. Sometimes it returns after
> > > > >> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
> > > > >> seems to take a full reboot.
> > > > >>
> > > > >> This looks similar to:
> > > > >>
> > > > >> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
> > > > >>
> > > > >> Some folks think that this kind of issue is triggered by audio volume being
> > > > >> above a certain level. I'm not entirely sure if this is true, but I think it
> > > > >> is. One time, I apparently triggered the issue by unplugging and replugging the
> > > > >> audio cable from the mainboard during playback.
> > > > >>
> > > > >> Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
> > > > >> The volume does get louder when I turn up that mixer control, but it never goes
> > > > >> away entirely when I turn the volume to zero. Mute works as expected.
> > > > >
> > > > > The volume 0 doesn't always mean the mute on several hardwares.
> > > > > So this can be irrelevant if it happens always.
> > > > >
> > > > > I vaguely remember about the low-power mode of some codec chips.
> > > > > Which codec chip does your system have? Please run alsa-info.sh with
> > > > > --no-upload option, and attach the output file.
> > > >
> > > > The output would be the same as what was already uploaded, right? I've attached
> > > > that output here for your convenience.
> > >
> > > Thanks, it's always better to post the content than a URL.
> > >
> > > Any chance to try the later version of alsa-driver?
> > > Yours looks pretty old.
> >
> > I can try this a bit later today. I'll report the results ASAP.
>
> BTW, try the one from the URL below instead of 1.0.18a.
> This contains the newest alsa-driver snapshot:
> ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
Brief testing indicates that 1.0.18a seems to fix the issue, actually. Sorry, I
forgot that you had asked me to test the snapshot.
Would it be helpful for you for me to try the snapshot as well (maybe to check
for a regression)? Any idea as to what change may have fixed this?
Thanks,
Forest
--
Forest Bond
http://www.alittletooquiet.net
http://www.pytagsfs.org
[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 189 bytes --]
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: via82xx: unreliable audio, strange mixer behavior
2008-11-24 20:03 ` Forest Bond
@ 2008-11-24 23:09 ` Takashi Iwai
2008-11-25 20:51 ` Forest Bond
0 siblings, 1 reply; 9+ messages in thread
From: Takashi Iwai @ 2008-11-24 23:09 UTC (permalink / raw)
To: Forest Bond; +Cc: alsa-devel
At Mon, 24 Nov 2008 15:03:06 -0500,
Forest Bond wrote:
>
> Hi,
>
> On Fri, Nov 21, 2008 at 05:36:49PM +0100, Takashi Iwai wrote:
> > At Fri, 21 Nov 2008 11:32:56 -0500,
> > Forest Bond wrote:
> > >
> > > On Fri, Nov 21, 2008 at 01:54:43PM +0100, Takashi Iwai wrote:
> > > > At Fri, 21 Nov 2008 07:08:23 -0500,
> > > > Forest Bond wrote:
> > > > > On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote:
> > > > > > At Thu, 20 Nov 2008 12:04:09 -0500,
> > > > > > Forest Bond wrote:
> > > > > >>
> > > > > >> Hi,
> > > > > >>
> > > > > >> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
> > > > > >>
> > > > > >> http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
> > > > > >>
> > > > > >> Here are the symptoms:
> > > > > >>
> > > > > >> Audio goes away after a semi-random interval. Sometimes it returns after
> > > > > >> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
> > > > > >> seems to take a full reboot.
> > > > > >>
> > > > > >> This looks similar to:
> > > > > >>
> > > > > >> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
> > > > > >>
> > > > > >> Some folks think that this kind of issue is triggered by audio volume being
> > > > > >> above a certain level. I'm not entirely sure if this is true, but I think it
> > > > > >> is. One time, I apparently triggered the issue by unplugging and replugging the
> > > > > >> audio cable from the mainboard during playback.
> > > > > >>
> > > > > >> Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
> > > > > >> The volume does get louder when I turn up that mixer control, but it never goes
> > > > > >> away entirely when I turn the volume to zero. Mute works as expected.
> > > > > >
> > > > > > The volume 0 doesn't always mean the mute on several hardwares.
> > > > > > So this can be irrelevant if it happens always.
> > > > > >
> > > > > > I vaguely remember about the low-power mode of some codec chips.
> > > > > > Which codec chip does your system have? Please run alsa-info.sh with
> > > > > > --no-upload option, and attach the output file.
> > > > >
> > > > > The output would be the same as what was already uploaded, right? I've attached
> > > > > that output here for your convenience.
> > > >
> > > > Thanks, it's always better to post the content than a URL.
> > > >
> > > > Any chance to try the later version of alsa-driver?
> > > > Yours looks pretty old.
> > >
> > > I can try this a bit later today. I'll report the results ASAP.
> >
> > BTW, try the one from the URL below instead of 1.0.18a.
> > This contains the newest alsa-driver snapshot:
> > ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
>
> Brief testing indicates that 1.0.18a seems to fix the issue, actually. Sorry, I
> forgot that you had asked me to test the snapshot.
>
> Would it be helpful for you for me to try the snapshot as well (maybe to check
> for a regression)?
Yes, it'd be helpful.
> Any idea as to what change may have fixed this?
It's about the low-power mode of VIA ac97 codec chip.
Takashi
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: via82xx: unreliable audio, strange mixer behavior
2008-11-24 23:09 ` Takashi Iwai
@ 2008-11-25 20:51 ` Forest Bond
0 siblings, 0 replies; 9+ messages in thread
From: Forest Bond @ 2008-11-25 20:51 UTC (permalink / raw)
To: Takashi Iwai; +Cc: alsa-devel
[-- Attachment #1.1: Type: text/plain, Size: 3461 bytes --]
Hi,
On Tue, Nov 25, 2008 at 12:09:22AM +0100, Takashi Iwai wrote:
> At Mon, 24 Nov 2008 15:03:06 -0500,
> Forest Bond wrote:
> > On Fri, Nov 21, 2008 at 05:36:49PM +0100, Takashi Iwai wrote:
> > > At Fri, 21 Nov 2008 11:32:56 -0500,
> > > Forest Bond wrote:
> > > >
> > > > On Fri, Nov 21, 2008 at 01:54:43PM +0100, Takashi Iwai wrote:
> > > > > At Fri, 21 Nov 2008 07:08:23 -0500,
> > > > > Forest Bond wrote:
> > > > > > On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote:
> > > > > > > At Thu, 20 Nov 2008 12:04:09 -0500,
> > > > > > > Forest Bond wrote:
> > > > > > >>
> > > > > > >> Hi,
> > > > > > >>
> > > > > > >> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
> > > > > > >>
> > > > > > >> http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
> > > > > > >>
> > > > > > >> Here are the symptoms:
> > > > > > >>
> > > > > > >> Audio goes away after a semi-random interval. Sometimes it returns after
> > > > > > >> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it
> > > > > > >> seems to take a full reboot.
> > > > > > >>
> > > > > > >> This looks similar to:
> > > > > > >>
> > > > > > >> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
> > > > > > >>
> > > > > > >> Some folks think that this kind of issue is triggered by audio volume being
> > > > > > >> above a certain level. I'm not entirely sure if this is true, but I think it
> > > > > > >> is. One time, I apparently triggered the issue by unplugging and replugging the
> > > > > > >> audio cable from the mainboard during playback.
> > > > > > >>
> > > > > > >> Audio can be heard even when the PCM volume level is 0 (as told by alsamixer).
> > > > > > >> The volume does get louder when I turn up that mixer control, but it never goes
> > > > > > >> away entirely when I turn the volume to zero. Mute works as expected.
> > > > > > >
> > > > > > > The volume 0 doesn't always mean the mute on several hardwares.
> > > > > > > So this can be irrelevant if it happens always.
> > > > > > >
> > > > > > > I vaguely remember about the low-power mode of some codec chips.
> > > > > > > Which codec chip does your system have? Please run alsa-info.sh with
> > > > > > > --no-upload option, and attach the output file.
> > > > > >
> > > > > > The output would be the same as what was already uploaded, right? I've attached
> > > > > > that output here for your convenience.
> > > > >
> > > > > Thanks, it's always better to post the content than a URL.
> > > > >
> > > > > Any chance to try the later version of alsa-driver?
> > > > > Yours looks pretty old.
> > > >
> > > > I can try this a bit later today. I'll report the results ASAP.
> > >
> > > BTW, try the one from the URL below instead of 1.0.18a.
> > > This contains the newest alsa-driver snapshot:
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
> >
> > Brief testing indicates that 1.0.18a seems to fix the issue, actually. Sorry, I
> > forgot that you had asked me to test the snapshot.
> >
> > Would it be helpful for you for me to try the snapshot as well (maybe to check
> > for a regression)?
>
> Yes, it'd be helpful.
The snapshot seems to work well, also.
Thanks for your help!
-Forest
--
Forest Bond
http://www.alittletooquiet.net
http://www.pytagsfs.org
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^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2008-11-25 20:51 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-11-20 17:04 via82xx: unreliable audio, strange mixer behavior Forest Bond
2008-11-21 11:59 ` Takashi Iwai
2008-11-21 12:08 ` Forest Bond
2008-11-21 12:54 ` Takashi Iwai
2008-11-21 16:32 ` Forest Bond
2008-11-21 16:36 ` Takashi Iwai
2008-11-24 20:03 ` Forest Bond
2008-11-24 23:09 ` Takashi Iwai
2008-11-25 20:51 ` Forest Bond
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