[alsa-devel] regression: from 3.8 to 3.9: headphones output no sound on Intel HDA, codec VIA VT1802
Alex Riesen
raa.lkml at gmail.com
Fri May 24 18:36:14 CEST 2013
On Fri, May 24, 2013 at 3:29 PM, Takashi Iwai <tiwai at suse.de> wrote:
>> On Fri, May 17, 2013 at 8:04 AM, Takashi Iwai <tiwai at suse.de> wrote:
>> >> Well... It seems that something went unnoticed. This command seems
>> >> to be essential for this (and the revised) patch to get the headphone
>> >> output at all:
>> >>
>> >> hda-verb /dev/snd/hwC0D0 0x25 SET_PIN_WID 0xc0
>> >
>
> Looking at the outputs above, it seems that turning on/off EAPD on VT
> codecs triggers the automatic power up/down of the pin, which leads to
> the unexpected result.
I may be wrong here, but why the patch touches EAPD handling, but not WID?
> Could you try the patch below?
I did, it does not work. Transcript and alsa-info before and after
hda-verb attached.
Regards,
Alex
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