My microphone used to work, but now doesn't. Sound plays fine. I'm using Ubuntu Feisty; I'm pretty sure the mic used to work in Feisty, but it is possible that the last upgrade broke it.
The mic is hard to test because gnome-sound-recorder crashes (segmentation fault) when I try to record, and Audacity gives me the "can't open input device" error. (I noticed the problem when I tried to use Gizmo.) I haven't gotten it to work with arecord (but see below).
In accordance with the "Comprehensive Sound Problem Solution Guide" (in the Ubuntu forums), I have done the following:
- Checked in alsamixer that the microphone is not muted and has volume up
- Re-installed linux-sound-base, alsa-base, and alsa-utils
- Tried to recompile the drivers from the ALSA project, but got errors
I've also tried with and without esd and jack running. I have an
intel8x0 chipset soundcard, with an mpu401 chipset also on a Hauppauge
tv capture card. (I've never had a problem with the sound getting mixed
up between the cards before.) Here is what I get from "arecord -l":
Code:
**** List of CAPTURE Hardware Devices ****
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel
82801DB-ICH4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 1: Intel ICH - MIC ADC
[Intel 82801DB-ICH4 - MIC ADC]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 2: Intel ICH - MIC2
ADC [Intel 82801DB-ICH4 - MIC2 ADC]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 3: Intel ICH - ADC2
[Intel 82801DB-ICH4 - ADC2]
Subdevices: 1/1
Subdevice #0: subdevice #0
I'm a bit puzzled by the presence of two entries for microphones. It
doesn't make any sense to me, but maybe it is some technical thing that
I don't understand. When I run alsamixer (but not alsamixergui or the
gnome alsa mixer), there is a column labelled "Mic Sele" that shows
"Mic2" above it; I haven't figured out how to change it.
I tried to test recording using arecord, but nothing happened (the file
was not even created). I figured this might be because I didn't specify
a device, but I couldn't figure out the name of the microphone devices
revealed in "arecord -L".
As always, any help is appreciated. It's almost more frustrating that it
used to work fine, since I know there is some configuration thing I can
change to make it work, I just don't have any idea what it is.
