I am using Gentoo 2005.0 and when compiling Ghostscript the system had a Kernel panic (known AMD_64 problem) and then upon rebooting ALSA Does not work. Typing alsaconfig does nothing and OSS Drivers do work but for some reason I have to chmod /dev/dsp in order to get them to work. I get an error in XMMS is
failed to open audio output: ALSA 1.2.10 output plugin
I have tried re-emerging the alsa files with no luck.
Is it possible that during the kernel panic the module got corrupt?
It seems that the problem is with permissions. If I issue a chmod -R 666 /dev/snd then ALSA works fine. Although after every reboot I have to issue this again. Also, the gnome mixer applet still is not working. Any ideas?