On 18.04.12 11:55, Uros Vampl wrote:
The only physical input is mic-in. But there's also an integrated microphone. In kernel 3.3 the intergrated mic is simply "Mic" and works for both playback and capture. I don't have an external mic to test.
In kernel 3.4 I still don't have sound, even with the patch (I unmuted everything there was to unmute, then muted SPDIF, nothing produced sound), so I could only test capture - "Rear Mic" captures from the integrated microphone.
I assume "Front Mic" would work for an external microphone, and maybe CD is for listening to audio CDs? The CD drive broke a few years back, so I can't test it.
No idea about SPDIF-in, but headphone-out doubles as SPDIF-out. There's a red light inside the jack, and if I unmute SPDIF, the light goes on. I remember it was like that also in Windows. I don't have appropriate hardware to test if it actually works.
Attached is a alsa-info.txt with the patch. There are some differences compared to without patch, but like I said above, still no sound.
Looking at the various alsa-info.txt files I've sent, I think I know which crucial mixer control is missing in kernel 3.4, causing me to not have sound - "Front". It's there with kernel 3.3 and controls volume/mute of both speakers and headphones (the "Headphone" control does nothing). It's not there in kernel 3.4, with or without patch.
Regards, Uroš