Public bug reported:
Binary package hint: pulseaudio
Pulseaudio seems to have decided that the ALSA "Mic" capture device on
my machine is the only one it will use. "Internal Mic" is the correct
one (at least when no external mic is plugged in).
If I use alsamixer to switch to the correct capture device, the
pulseaudio volume controls instantly marks its input device as "muted"
(and no sound is captured with, e.g., gnome sound recorder). Un-muting
within the pulseaudio volume control again switches the alsa mixer back
to the incorrect "Mic" device (which captures only noise). There doesn't
seem to be any way to tell pulseaudio which capture channel to use.
Pulseaudio level meter show the same thing - noise when the incorrect
"Mic" device is active, but completely muted if alsamixer is used to
change to the right device.
Everything works fine if I boot a jaunty live disk - the alsa
configuration and device detection seems exactly the same, but alsamixer
can be used to switch active devices underneath pulseaudio. Sound
recorder and pulseaudio level meters show noise on the "Mic" device, but
correct capture when the "Internal Mic" is active. (And muting with the
pulseaudio only deselects the "Capture" level control in alsamixer, it
does not activate "Mic" and deactivate "Internal Mic".)
This may be a duplicate of Bug #414215, but it didn't seem quite the
same to me.
ProblemType: Bug
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: oliver 3202 F.... pulseaudio
oliver 3493 F.... alsamixer
/dev/snd/pcmC0D0p: oliver 3202 F...m pulseaudio
/dev/snd/pcmC0D0c: oliver 3202 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfa220000 irq 17'
Mixer name : 'Analog Devices AD1984A'
Components : 'HDA:11d4194a,17aa20fb,00100200'
Controls : 14
Simple ctrls : 10
Date: Tue Sep 22 03:53:35 2009
DistroRelease: Ubuntu 9.10
Package: pulseaudio 1:0.9.18-0ubuntu2
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
SourcePackage: pulseaudio
Uname: Linux 2.6.31-10-generic x86_64
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug
--
Pulseaudio refuses to use internal microphone input (Lenovo X300)
https://bugs.launchpad.net/bugs/434520
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