Kernel Bug Tracker – Bug 14976
No sound on snd_hda_codec_via in 2.6.33-rc2
Last modified: 2010-01-12 21:40:46 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.
0 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xfbbf4000 irq 16
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
Created attachment 24401 [details]
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.
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
> > > firstname.lastname@example.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.