Re: via82xx driver: reporting dxs_support experience

[Takashi Iwai <tiwai@suse.de>]

At Sun, 17 Apr 2005 12:51:03 -0400,
TJ wrote:
> 
> I was using the 2.6.7 kernel without APIC or ACPI support, and the via82xx 
> driver worked perfectly, compiled as a module, without any options. I built a 
> new 2.6.7 kernel on the same hardware with APIC and ACPI support in the 
> kernel, as the board supports it, and the driver did not work correctly. When 
> sound was played, a short, 1 second long bit of the sound to be played was 
> looped. Possibly this is the clicking noise described by some people? The 
> driver works fine with this new kernel after adding the option 
> "dxs_support=1". I hope this interaction with ACPI and APIC sheds some light 
> on some of the troubles with this driver. I can provide more information if 
> anyone wants it. Please CC me, I'm not on the list.

Please try dxs_support=4 and check a non-48kHz sample (e.g. normal MP3
playback).  Usually, dxs_support=4 is the "right" value for most
devices.  dxs_support=1 might work on old hardwares, though.


thanks,

Takashi
> 
> TJ
> 
> Motherboard: MSI K7T266 Pro2
> 
> lspci -nv:
> 
> 00:00.0 Class 0600: 1106:3099
>         Subsystem: 1106:0000
>         Flags: bus master, medium devsel, latency 0
>         Memory at e0000000 (32-bit, prefetchable) [size=64M]
>         Capabilities: [a0] AGP version 2.0
>         Capabilities: [c0] Power Management version 2
> 
> 00:01.0 Class 0604: 1106:b099
>         Flags: bus master, 66Mhz, medium devsel, latency 0
>         Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
>         Memory behind bridge: dfc00000-dfcfffff
>         Prefetchable memory behind bridge: dfa00000-dfafffff
>         Capabilities: [80] Power Management version 2
> 
> 00:06.0 Class 0200: 8086:100e (rev 02)
>         Subsystem: 8086:002e
>         Flags: bus master, 66Mhz, medium devsel, latency 96, IRQ 17
>         Memory at dffc0000 (32-bit, non-prefetchable) [size=128K]
>         Memory at dffa0000 (32-bit, non-prefetchable) [size=128K]
>         I/O ports at d800 [size=64]
>         Expansion ROM at dff80000 [disabled] [size=128K]
>         Capabilities: [dc] Power Management version 2
>         Capabilities: [e4] PCI-X non-bridge device.
>         Capabilities: [f0] Message Signalled Interrupts: 64bit+ Queue=0/0 
> Enable
> -
> 
> 00:07.0 Class 0200: 1317:0985 (rev 11)
>         Subsystem: 1317:0570
>         Flags: bus master, medium devsel, latency 96, IRQ 18
>         I/O ports at d400 [size=256]
>         Memory at dfffbc00 (32-bit, non-prefetchable) [size=1K]
>         Expansion ROM at dff60000 [disabled] [size=128K]
>         Capabilities: [c0] Power Management version 2
> 
> 00:08.0 Class 0180: 105a:4d69 (rev 02) (prog-if 85)
>         Subsystem: 105a:4d68
>         Flags: bus master, 66Mhz, slow devsel, latency 96, IRQ 19
>         I/O ports at ec00 [size=8]
>         I/O ports at e800 [size=4]
>         I/O ports at e400 [size=8]
>         I/O ports at e000 [size=4]
>         I/O ports at dc00 [size=16]
>         Memory at dfffc000 (32-bit, non-prefetchable) [size=16K]
>         Expansion ROM at dffe0000 [disabled] [size=16K]
>         Capabilities: [60] Power Management version 1
> 
> 00:09.0 Class 0180: 1095:0680 (rev 01)
>         Subsystem: 1095:0680
>         Flags: bus master, medium devsel, latency 96, IRQ 16
>         I/O ports at d000 [size=8]
>         I/O ports at cc00 [size=4]
>         I/O ports at c800 [size=8]
>         I/O ports at c400 [size=4]
>         I/O ports at c000 [size=16]
>         Memory at dfffbb00 (32-bit, non-prefetchable) [size=256]
>         Expansion ROM at dfe80000 [disabled] [size=512K]
>         Capabilities: [60] Power Management version 2
> 
> 00:11.0 Class 0601: 1106:3074
>         Subsystem: 1106:0000
>         Flags: bus master, stepping, medium devsel, latency 0
>         Capabilities: [c0] Power Management version 2
> 
> 00:11.1 Class 0101: 1106:0571 (rev 06) (prog-if 8a [Master SecP PriP])
>         Subsystem: 1106:0571
>         Flags: bus master, medium devsel, latency 32
>         I/O ports at fc00 [size=16]
>         Capabilities: [c0] Power Management version 2
> 
> 00:11.5 Class 0401: 1106:3059 (rev 10)
>         Subsystem: 4005:4710
>         Flags: medium devsel, IRQ 28
>         I/O ports at bc00 [size=256]
>         Capabilities: [c0] Power Management version 2
>