[alsa-devel] No sound on Quanta KN1 with kernel 3.4
tiwai at suse.de
Mon Apr 16 16:07:26 CEST 2012
At Sat, 14 Apr 2012 22:52:09 +0200,
Uros Vampl wrote:
> On 14.04.12 21:25, Takashi Iwai wrote:
> > At Sat, 14 Apr 2012 19:10:30 +0200,
> > Uros Vampl wrote:
> > >
> > > Hi,
> > >
> > > as I wrote on the -users list, I don't have sound anymore in kernel 3.4.
> > > I was told to post the output of alsa-info.sh here, so here I am. The
> > > requested output is attached.
> > Could you give the alsa-info.sh output on the working kernel?
> > In that way, it becomes easier to spot out what caused the problem.
Could you try the patch below?
Also, which output is missing? Is it a speaker output or a line-out
jack? Basically it's a bug of BIOS that doesn't give the proper
association number for the corresponding pin 0x0f. The patch is just
to make less restrictive.
But, if it's a laptop, the corresponding pin is likely a speaker
output, so it'd be better to fix the pin-default value itself via
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 7a8fcc4..83f0b13 100644
@@ -4957,8 +4957,6 @@ int snd_hda_parse_pin_defcfg(struct hda_codec *codec,
if (!(wid_caps & AC_WCAP_STEREO))
cfg->mono_out_pin = nid;
- if (!assoc)
assoc_line_out = assoc;
else if (assoc_line_out != assoc)
More information about the Alsa-devel