Red Hat Bugzilla – Bug 499707
sound card driver loaded but sound card not recognized?
Last modified: 2009-05-13 22:45:42 EDT
Created attachment 342905 [details]
output from "alsa-info.sh"
I loaded Fedora 11 Preview on my laptop. Although the sound card appears to be recognized (e.g., it's listed in /proc/asound), all utilities behave as if there is no sound card present in the system.
$ alsactl init
alsactl: init:1708: No soundcards found...
$ alsamixer -c0
wrong -c argument '0'
Note that the "alsa-info.sh" output claims that pulseaudio isn't running, but that is most decided false:
E: pid.c: Daemon already running.
E: main.c: pa_pid_file_create() failed.
$ ps fax | grep pulse
3967 ? Ssl 0:00 /usr/bin/pulseaudio --start --log-target=syslog
3968 ? S 0:00 \_ /usr/libexec/pulse/gconf-helper
> Note that the "alsa-info.sh" output claims that pulseaudio isn't running, but
> that is most decided false:
That seems to be a bug in the alsa-info.sh script. I see the same. It is doing
pgrep /usr/bin/pulseaudio, which yields nothing.
Either 'pgrep pulseaudio' or 'pgrep -f /usr/bin/pulseaudio' would work.
Might be good to file a bug against alsa-utils about that.
Seems to be an ALSA problem.
Could you please attach the strace output of 'amixer -c0' here?
The last batch of updated alsa packages in Rawhide (1.0.18-3.fc11) seems to have fixed this. For now, I'm going to close with RAWHIDE; if I see problems again, I'll reopen and provide "amixer -c0" output.
(The bad use of pgrep was also fixed in the latest alsa-utils.)