namehint: Evaluate more possibilities for hw devices

namehint: Evaluate more possibilities for hw devices

[Stas Sergeev]

[-- Attachment #1: Type: text/plain, Size: 437 bytes --]

  Hi Jaroslav.

I updated the alsa-lib from git, and "aplay -L"
no longer shows some PCMs it used to list before.
I tracked this down to this commit:
---
commit 97d25c0766405453d3c298bd51dd4916121a4f6a
Author: Jaroslav Kysela <perex@perex.cz>
Date:   Fri Aug 20 10:31:17 2010 +0200

     namehint: Evaluate more possibilities for hw devices
---

Attached are the outputs before and after the commit.
So why some devices are now missing?

[-- Attachment #2: before.log --]
[-- Type: text/plain, Size: 983 bytes --]

default
    Default
front:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    Front speakers
surround40:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Digital
    IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=HDMI
    HDA ATI HDMI, ATI HDMI
    HDMI Audio Output
front:CARD=pcsp,DEV=0
    pcsp, pcsp
    Front speakers
front:CARD=Dummy,DEV=0
    Dummy, Dummy PCM
    Front speakers

[-- Attachment #3: after.log --]
[-- Type: text/plain, Size: 800 bytes --]

default
    Default
front:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    Front speakers
surround40:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=NVidia,DEV=0
    HDA NVidia, ALC887 Digital
    IEC958 (S/PDIF) Digital Audio Output

[-- Attachment #4: Type: text/plain, Size: 160 bytes --]

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Re: namehint: Evaluate more possibilities for hw devices

[Raymond Yau]

2010/10/1 Stas Sergeev <stsp@aknet.ru>

>  Hi Jaroslav.
>
> I updated the alsa-lib from git, and "aplay -L"
> no longer shows some PCMs it used to list before.
> I tracked this down to this commit:
> ---
> commit 97d25c0766405453d3c298bd51dd4916121a4f6a
> Author: Jaroslav Kysela <perex@perex.cz>
> Date:   Fri Aug 20 10:31:17 2010 +0200
>
>    namehint: Evaluate more possibilities for hw devices
> ---
>
> Attached are the outputs before and after the commit.
> So why some devices are now missing?
>
>
it seem that only occur when card with one playback device or one capture
device

(e.g. snd-dummy also has this problem but snd-aloop does not )

Re: namehint: Evaluate more possibilities for hw devices

[Jaroslav Kysela]

On Thu, 30 Sep 2010, Stas Sergeev wrote:

> Hi Jaroslav.
>
> I updated the alsa-lib from git, and "aplay -L"
> no longer shows some PCMs it used to list before.
> I tracked this down to this commit:

I tried to fix this issue in this commit:

http://git.alsa-project.org/?p=alsa-lib.git;a=commitdiff;h=0244370be695372a05344ac760d624e0b40ec9ea

Could you confirm?

 				Thanks,
 					Jaroslav

-----
Jaroslav Kysela <perex@perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.

Re: namehint: Evaluate more possibilities for hw devices

[Stas Sergeev]

  01.10.2010 15:32, Jaroslav Kysela wrote:
> I tried to fix this issue in this commit:
>
> http://git.alsa-project.org/?p=alsa-lib.git;a=commitdiff;h=0244370be695372a05344ac760d624e0b40ec9ea 
>
>
> Could you confirm?
No, not confirming the fix. Still the same.
Is there anything I can do to help with debugging?

Re: namehint: Evaluate more possibilities for hw devices

[Jaroslav Kysela]

On Fri, 1 Oct 2010, Stas Sergeev wrote:

> 01.10.2010 15:32, Jaroslav Kysela wrote:
>> I tried to fix this issue in this commit:
>> 
>> http://git.alsa-project.org/?p=alsa-lib.git;a=commitdiff;h=0244370be695372a05344ac760d624e0b40ec9ea 
>> 
>> Could you confirm?
> No, not confirming the fix. Still the same.
> Is there anything I can do to help with debugging?

This patch should definitely fix it:

http://git.alsa-project.org/?p=alsa-lib.git;a=commitdiff;h=c049d48407ff0459ff15e466edeeee6ecff67fcd

 					Jaroslav

-----
Jaroslav Kysela <perex@perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.

Re: namehint: Evaluate more possibilities for hw devices

[Stas Sergeev]

  01.10.2010 16:08, Jaroslav Kysela wrote:
> This patch should definitely fix it:
>
> http://git.alsa-project.org/?p=alsa-lib.git;a=commitdiff;h=c049d48407ff0459ff15e466edeeee6ecff67fcd 
>
Much better now, thanks!
I still have an issue though.
If the device registers only the playback
substreams and no record substreams,
it is still not listed. To reproduce, set the
"/capture_count" param of /*snd_pcm_new()
*to 0 in dummy.c, and then it disappears
from the list, as follows:
---
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Dummy [Dummy], device 0: Dummy PCM [Dummy PCM]
   Subdevices: 8/8
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
   Subdevice #2: subdevice #2
   Subdevice #3: subdevice #3
   Subdevice #4: subdevice #4
   Subdevice #5: subdevice #5
   Subdevice #6: subdevice #6
   Subdevice #7: subdevice #7
card 2: STx7109 [STx7109 audio subsystem], device 0:  [PCM player #0 (HDMI)]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 2: STx7109 [STx7109 audio subsystem], device 1:  [PCM player #1]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 2: STx7109 [STx7109 audio subsystem], device 2:  [SPDIF player (HDMI)]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

$ aplay -L
null
     Discard all samples (playback) or generate zero samples (capture)
---

Here you can see also the STx7109 driver, which
is not yet in an alsa tree, having the same problem.
Could you please fix also this?

Re: namehint: Evaluate more possibilities for hw devices

[Jaroslav Kysela]

On Fri, 1 Oct 2010, Stas Sergeev wrote:

> 01.10.2010 16:08, Jaroslav Kysela wrote:
>       This patch should definitely fix it:
> 
> http://git.alsa-project.org/?p=alsa-lib.git;a=commitdiff;h=c049d48407ff0459
>       ff15e466edeeee6ecff67fcd
> 
> Much better now, thanks!
> I still have an issue though.
> If the device registers only the playback
> substreams and no record substreams,
> it is still not listed. To reproduce, set the
> "capture_count" param of snd_pcm_new()
> to 0 in dummy.c, and then it disappears
> from the list, as follows:

Try upgrade alsa-utils (aplay). Appearenly, the bug is there (at least on 
my system the latest aplay lists devices correctly, but aplay 1.0.18 is 
buggy).

 					Jaroslav

-----
Jaroslav Kysela <perex@perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.

Re: namehint: Evaluate more possibilities for hw devices

[Stas Sergeev]

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  01.10.2010 17:14, Jaroslav Kysela wrote:
> Try upgrade alsa-utils (aplay). Appearenly, the bug is there (at least 
> on my system the latest aplay lists devices correctly, but aplay 
> 1.0.18 is buggy).
Many thanks, now it works!
One thing to note is that previously
also VirMIDI device was listed, and not
any more. But I guess this is intentional,
as it is not a PCM device.
I needed the attached patch to compile
alsa-utils. I am cross-compiling, and without
this change, the configure would pick up
the host's ncurses-config.

Thanks for your help.

[-- Attachment #2: a.diff --]
[-- Type: text/plain, Size: 1315 bytes --]

diff --git a/configure.in b/configure.in
index 8bae007..2f47ef6 100644
--- a/configure.in
+++ b/configure.in
@@ -108,7 +108,8 @@ if test x$alsamixer = xtrue; then
   CURSESLIBDIR=""
   NCURSESLIBSUFFIX=""
   CURSES_NLS="no"
-  if test "$curseslib" = "ncursesw" -o \( "$curseslib" = "auto" -a "$USE_NLS" = "yes" \); then
+  if test "$cross_compiling" != "yes"; then
+   if test "$curseslib" = "ncursesw" -o \( "$curseslib" = "auto" -a "$USE_NLS" = "yes" \); then
     AC_CHECK_PROG([ncursesw5_config], [ncursesw5-config], [yes])
     if test "$ncursesw5_config" = "yes"; then
       CURSESINC="<ncurses.h>"
@@ -124,8 +125,8 @@ if test x$alsamixer = xtrue; then
       NCURSESLIBSUFFIX="w"
       CURSES_NLS="yes"
     fi
-  fi
-  if test "$curseslib" = "ncurses" -o "$curseslib" = "auto"; then
+   fi
+   if test "$curseslib" = "ncurses" -o "$curseslib" = "auto"; then
     AC_CHECK_PROG([ncurses5_config], [ncurses5-config], [yes])
     if test "$ncurses5_config" = "yes"; then
       CURSESINC="<ncurses.h>"
@@ -137,6 +138,7 @@ if test x$alsamixer = xtrue; then
       AC_CHECK_LIB(ncurses, initscr, 
                  [ CURSESINC='<ncurses.h>'; CURSESLIB='-lncurses'; curseslib="ncurses"])
     fi
+   fi
   fi
   if test "$curseslib" = "curses" -o "$curseslib" = "auto"; then
     AC_CHECK_LIB(curses, initscr, 

[-- Attachment #3: Type: text/plain, Size: 160 bytes --]

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Re: namehint: Evaluate more possibilities for hw devices

[Stas Sergeev]

  Sorry for bothering you again, but I think
even now it is not all that good. :)

---
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Dummy [Dummy], device 0: Dummy PCM [Dummy PCM]
   Subdevices: 8/8
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
   Subdevice #2: subdevice #2
   Subdevice #3: subdevice #3
   Subdevice #4: subdevice #4
   Subdevice #5: subdevice #5
   Subdevice #6: subdevice #6
   Subdevice #7: subdevice #7
card 2: STx7100 [STx7109 audio subsystem], device 0:  [PCM player #0 (HDMI)]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 2: STx7100 [STx7109 audio subsystem], device 1:  [PCM player #1]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 2: STx7100 [STx7109 audio subsystem], device 2:  [SPDIF player (HDMI)]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

$ aplay -L
null
     Discard all samples (playback) or generate zero samples (capture)
default:CARD=Dummy
     Dummy, Dummy PCM
     Default Audio Device
default:CARD=STx7100
     STx7109 audio subsystem, PCM player #0 (HDMI)
     Default Audio Device
---

My question is: why it only lists player 0?
There are also 1 and 2. Is this still a bug,
or am I missing something?

Re: namehint: Evaluate more possibilities for hw devices

[Jaroslav Kysela]

On Fri, 1 Oct 2010, Stas Sergeev wrote:

> Sorry for bothering you again, but I think
> even now it is not all that good. :)
>
> ---
> $ aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: Dummy [Dummy], device 0: Dummy PCM [Dummy PCM]
>  Subdevices: 8/8
>  Subdevice #0: subdevice #0
>  Subdevice #1: subdevice #1
>  Subdevice #2: subdevice #2
>  Subdevice #3: subdevice #3
>  Subdevice #4: subdevice #4
>  Subdevice #5: subdevice #5
>  Subdevice #6: subdevice #6
>  Subdevice #7: subdevice #7
> card 2: STx7100 [STx7109 audio subsystem], device 0:  [PCM player #0 (HDMI)]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 2: STx7100 [STx7109 audio subsystem], device 1:  [PCM player #1]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 2: STx7100 [STx7109 audio subsystem], device 2:  [SPDIF player (HDMI)]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
>
> $ aplay -L
> null
>    Discard all samples (playback) or generate zero samples (capture)
> default:CARD=Dummy
>    Dummy, Dummy PCM
>    Default Audio Device
> default:CARD=STx7100
>    STx7109 audio subsystem, PCM player #0 (HDMI)
>    Default Audio Device

The Dummy and STx7109 devices does not have appropriate configuration 
files in /usr/share/alsa/cards tree and namehint does not list hw: like 
devices by default. Use "defaults.namehint.showall=1" in your 
configuration file (~/.asoundrc).

 					Jaroslav

-----
Jaroslav Kysela <perex@perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.

Re: namehint: Evaluate more possibilities for hw devices

[Stas Sergeev]

  01.10.2010 19:04, Jaroslav Kysela wrote:
> The Dummy and STx7109 devices does not have appropriate configuration 
> files in /usr/share/alsa/cards tree and namehint does not list hw: 
> like devices by default. Use "defaults.namehint.showall=1" in your 
> configuration file (~/.asoundrc).
defaults.namehint.showall=1 didn't make a difference,
but defaults.namehint.extended=1 did.
Thanks again!