On Tue, Dec 30, 2014 at 8:05 AM, Stefan Oltmanns stefan-oltmanns@gmx.net wrote:
Hi,
I own a Gigabyte G1.Sniper M3 Z77 mainboard with ca0132 onboard audio. Currently only stereo out and headphone out (at the back, always same signal) work by default. I was able to fix S/PDIF out by changing the headphone pin in function ca0132_config to something below 0x0d, like:
spec->out_pins[1] = 0x0a;
No idea why this fixes S/PDIF, but no other effects noticed. No idea if it´s going to break something on other devices. Original value is 0x10.
In this function also 3 DACs are listed. The board has a total of 5 stereo outputs:
-Frontpanel (HDA pin connector on mainboard) 4x 3,5mm output at backpanel: -Stereo out -Headphone out -Rear out -Center/LFE out
I tried to increase the number of channels and create additional outputs and connected to the other DACs. The maximum I´m able to is to get different signals out of stereo out and front headphone (not useful, just some weird mixes) or same signal from all 3 outputs. Rear and c/lfe out always no signal.
During initialization snd_hda_parse_pin_def_config is called and two outputs are found. I tried to override that and change spec->autocfg after that function is called, no success. Also no matter what I change there, a little later I get this kernel messages:
kernel: [ 2.642972] input: HDA Intel PCH Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8 kernel: [ 2.643142] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7 kernel: [ 2.644932] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6 kernel: [ 2.645050] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input5
I could not find the code where this messages are generated, where is that?
Any ideas what I could/should try to get multichannel support working? Is there any kind of documentation on the ca0132 that could be helpful?
A lot of these capabilities need to be exposed by the DSP on the ca0132. What firmware are you loading on it?
Best regards Stefan _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel