No audio from (working?) via82cxxx

[Jingcao Hu]

Have you got ACPI working on? I have a HP zt1180 laptop which also uses
on-board VIA 82cXXX sound card. It had the same symptom like yours until I
enabled acpi.



Zach Wilkinson <zachw at termdex.com> writes:

> On board sound card is a ADI AD1980 SoundMAX 6-channel CODEC S/PDIF out
> interface.  Is detected as follows:
>
> [Output from dmesg:]
> Via 686a/8233/8235 audio driver 1.9.1-ac3
> PCI: Found IRQ 9 for device 00:11.5
> PCI: Sharing IRQ 9 with 00:10.4
> via82cxxx: Six channel audio available
> PCI: Setting latency timer of device 00:11.5 to 64
> via82cxxx: timeout while reading AC97 codec (0xAA0000)
> ac97_codec: AC97 Audio codec, id: ADS112 (Unknown)
> via82cxxx: board #1 at 0xE000, IRQ 9
>
> [Output from lsmod:]
> via82cxxx_audio        24056   1 (autoclean)
> ac97_codec             17064   0 (autoclean) [via82cxxx_audio]
> uart401                 8356   0 (autoclean) [via82cxxx_audio]
> sound                  73300   0 (autoclean) [via82cxxx_audio uart401]
> soundcore               6500   4 (autoclean) [via82cxxx_audio sound]
>
> [Output from cat /proc/pci:]
> Bus  0, device  17, function  5:
>     Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235
> AC97 Audio Controller (rev 96).
>       IRQ 9.
>       I/O at 0xe000 [0xe0ff].
>
> Sound Card detection tool identifies it as above, but the test sound
> cannot be heard.  From command line, # play <some_wav>.wav also produces
> no sound, as well as no errors.
> System thinks everything is fine but I hear nothing, even when volume is
> turned up.
> Works fine when booted into WinXP.
>
> Zach

-- 
The rain it raineth on the just
	And also on the unjust fella,
But chiefly on the just, because
	The unjust steals the just's umbrella.