Weblog entry #297 for simonw
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#297
Audio nightmare
Posted by simonw on Tue 13 Jan 2009 at 00:05
Something about the latest kernels in Lenny causes my computer to load the devices snd_pcsp (which sounds broken) and the sound driver that works (ICH5) in a different order occasionally. So that /proc/asound/cards changes.
In principle this is easily solved by specifying the default device by name. But I couldn't get this to work reliably, and even got odd locking of sound devices (which I couldn't explain) when I tried.
Eventually I abandoned all hope and blacklisted snd_pcsp in /etc/modprobe.d/alsa-base-blacklist
"blacklist snd_pcsp"
Rebooted the box and it all works fine, but I ought to be able to choose which sound card to use via the GNOME GUI somewhere? Pretty much every PC will have more than one sound card with Lenny, and no doubt the PC Speaker driver will be naff on most of them?
What am I missing?
In principle this is easily solved by specifying the default device by name. But I couldn't get this to work reliably, and even got odd locking of sound devices (which I couldn't explain) when I tried.
Eventually I abandoned all hope and blacklisted snd_pcsp in /etc/modprobe.d/alsa-base-blacklist
"blacklist snd_pcsp"
Rebooted the box and it all works fine, but I ought to be able to choose which sound card to use via the GNOME GUI somewhere? Pretty much every PC will have more than one sound card with Lenny, and no doubt the PC Speaker driver will be naff on most of them?
What am I missing?
Comments on this Entry
Very useful observation. In a slightly different manner I've blackisted the PC Speaker on my server in the kernel module list, it use to beep annoyingly at me now and then.
--
"It's Not Magic, It's Work"
Adam
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