[alsa-devel] Bug: Conexant CX20588, Kernel 3.11, Win8 changes GPIO settings

[Takashi Iwai]

At Sun, 22 Sep 2013 21:33:59 +0200,
Christopher wrote:
> 
> Hi,
> 
> I recently installed Windows 8 parallel to linux and there is no sound in
> linux after rebooting. I guess the win8 conexant driver messes something up.
> 
> A quick fix is to change this in HDAAnalyzer:
> 
> GPIO: io=4, o=0, i=0, unsolicited=1, wake=0
>   IO[0]: enable=1, dir=1, wake=0, sticky=0, data=0, unsol=0
>   IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
>   IO[2]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
>   IO[3]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
> 
> Either set enable=0 or data=1 -> Internal Audio + Headphones work again.
> This is persistent between reboots. Booting Win8 resets this again.
> 
> I would be very happy to test a patch.

So the GPIO should have been adjusted by the driver from the
beginning.  Could you give your hardware details?  At best, give the
output of alsa-info.sh.  Run it with --no-upload option and attach the 
output.


thanks,

Takashi