On 06/29/2010 12:02 AM, Tanu Kaskinen wrote: > On Fri, 2010-06-25 at 12:42 +0300, Nikos Chantziaras wrote: >> I've tried many combinations, but nothing works. Here's what "Input >> Devices" shows: >> >> http://i46.tinypic.com/10ymnww.jpg >> >> The activity shown in the bottom bar is from an MP3 currently playing in >> Amarok. The microphone or line-in doesn't generate any kind of activity. >> >> Here's the "Recording" tab: >> >> http://i46.tinypic.com/9h8j11.jpg >> >> Here too, the activity is generated by Amarok. When selecting the other >> choice in the shown pop-up menu, there's no activity shown, neither from >> an MP3 nor from the microphone. > > Then the problem is that Pulseaudio isn't getting anything from the > sound card's microphone input. The sound card seems to have multiple > ports. What if you try to select some other port on the Input Devices > tab? > > If changing the port doesn't help, then the next thing to try is to > desperately flip random mixer switches using "alsamixer -c0". If that > helps, please report back what elements needed changing (with luck we > might be able to incorporate that information into the default > configuration so that in the future your sound card would be supported > better out-of-the-box). I started tweaking everything at random. After a while, the mic started to work. In alsamixer, hitting F4 to get to the [Capture] settings, there's a setting called "Digital Source". It was set to "AC97 in". The possible settings are: SRC out AC97 in i2s in IEC958 in i2s mixer out IEC958 out I don't have the slightest idea of what that setting is for and what the choices mean, but the microphone only works when I set it to "i2s in". Every other settings results in the microphone being audible when increasing the "Capture feedback" volume no application can actually capture any sound from it.
