After installing kernel 2.6.15-1.1831_FC4 (same with 2.6.15-1.1830_FC4) I don't manage to get the sound to work. /etc/modprobe.conf is the same and "lsmod | grep snd" gives same output as with older, working kernels, so modules are loaded correctly (snd-emu10k1). system-config-soundcard finds the audio device and reports no errors; no test sound though. /usr/bin/gnome-volume-control however reports "No volume control elements and/or devices found" Maybe this is the most interesting error output, from /usr/bin/alsamixer : "ALSA lib simple_none.c:1216:(simple_add1) helem (MIXER,'Front Playback Volume',0,0,0) appears twice or more alsamixer: function snd_mixer_load failed: Invalid argument" Any advices how to solve this is much appreciated. Rgds Georg