W dniu 2011-07-02 00:09, Julian Sikorski pisze:
W dniu 01.07.2011 09:14, Takashi Iwai pisze:
At Fri, 01 Jul 2011 09:07:47 +0200, Julian Sikorski wrote:
>> So it seems that the only things remaining are the SPDIF/rear channel >> jack and the coupled muting issue. > > It's a BIOS bug. It doesn't tell SPDIF is available. > Ditto for the 4th stereo out. No pin is exposed by BIOS.
I see. I can try updating the BIOS and see if it changes anything. If it doesn't, is there a way to work the problem around in the driver?
You need to figure out pins manually by yourself, then change the driver code. I leave it as a homework :)
:) I cannot write code, so I would not count on myself doing that. I will have a look into updating the BIOS though.
thanks,
Takashi
Once again thanks for all the work you have done,
Julian
Hmm, I googled a bit and it seems the way to find the pins is to write values to user_pin_configs. So no coding knowledge seems needed, could you give me some pointers on where to start?
First off, read the HD-audio specification to understand what the values represent. Then, use hda-analyzer or manually via hda-verb, figure out which widget corresponds to which I/O jack. Compose the corresponding pin-config value, and put it to the sysfs file. A brief description is found in Documentation/sound/alsa/HD-Audio.txt.
Takashi
I have been scratching my head for almost 2 h now without much progress. Can I steal this values from Windows driver somehow? It seems to be possible:
http://www.insanelymac.com/forum/index.php?s=3298551705d0d48ba8faa28b9a7d328...
Julian
I managed to get the data out of Windows install, does it look useful?
Julian