Bug 14976 - No sound on snd_hda_codec_via in 2.6.33-rc2
No sound on snd_hda_codec_via in 2.6.33-rc2
Status: CLOSED DOCUMENTED
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA)
All Linux
: P1 normal
Assigned To: Jaroslav Kysela
:
Depends on:
Blocks: 14885
  Show dependency treegraph
 
Reported: 2010-01-02 08:27 UTC by Mark Rosenstand
Modified: 2010-01-12 21:40 UTC (History)
1 user (show)

See Also:
Kernel Version: 2.6.33-rc2
Tree: Mainline
Regression: Yes


Attachments
/proc/asound/card0/codec#0 (13.50 KB, text/plain)
2010-01-02 08:30 UTC, Mark Rosenstand
Details

Description Mark Rosenstand 2010-01-02 08:27:24 UTC
Looks like there are many more controls now available than in 2.6.32. I've tried to enable them all, but I'm getting no sound on this Asus M4A785G HTPC board (VIA VT2020) with current linux-2.6.git.

/proc/asound/cards:
 0 [SB             ]: HDA-Intel - HDA ATI SB
                      HDA ATI SB at 0xfbbf4000 irq 16

lspci:
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)

[mark@mjollnir ~]$ lsmod |grep snd
snd_hda_codec_via      38833  1 
snd_hda_intel          17055  8 
snd_hda_codec          50474  2 snd_hda_codec_via,snd_hda_intel
snd_hwdep               4194  1 snd_hda_codec
snd_pcm                43992  4 snd_hda_intel,snd_hda_codec
snd_timer              13073  3 snd_pcm
snd                    35959  18 snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore               3775  1 snd
snd_page_alloc          5129  2 snd_hda_intel,snd_pcm
Comment 1 Mark Rosenstand 2010-01-02 08:30:35 UTC
Created attachment 24401 [details]
/proc/asound/card0/codec#0
Comment 2 Mark Rosenstand 2010-01-02 17:39:33 UTC
Accidently got it to work just now. The Asus M4A785G HTPC board has 2 x phono outputs on the back (hooked up to my amplifier) that - with 2.6.33-rc2 - get disabled if there's no jack detected. I've connected my monitor's built-in speaker to the jack as a workaround.
Comment 3 Rafael J. Wysocki 2010-01-12 21:40:08 UTC
On Tuesday 12 January 2010, Takashi Iwai wrote:
> At Fri, 8 Jan 2010 22:48:46 +0100,
> Rafael J. Wysocki wrote:
> > 
> > On Thursday 07 January 2010, Andrew Morton wrote:
> > > On Sat, 2 Jan 2010 08:27:27 GMT
> > > bugzilla-daemon@bugzilla.kernel.org wrote:
> > > 
> > > > http://bugzilla.kernel.org/show_bug.cgi?id=14976
> > > 
> > > It's unclear to me whether there was really a regression or behaviour change here.
> > 
> > Well, from the user's point of view it's a regression IMhO.
> 
> The auto-muting is somewhat more similar with Windows driver behavior,
> so it can be regarded rather as an "improvement".
> The VIA driver was inconsistent about this behavior in the past.

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