Panel volume control no longer working after 2.6->2.8

[Heinrich Rebehn <rebehn ant uni-bremen de>]

Hi list,

after my upgrade from 2.6 to 2.8.0 the volume control in the panel does 
no longer work. If i operate the slider, it immediately snaps back to 
zero when released. If i select "Open volume control" i get "Sorry, no 
mixer elements and/or devices found". Permissions on /dev/snd and 
/dev/sound are ok:

rebehn bremerhaven [~]: ls -l /dev/snd /dev/sound
/dev/snd:
total 0
crw-------  1 rebehn root 116,  0 Jan  1  1970 controlC0
crw-------  1 rebehn root 116, 24 Jan  1  1970 pcmC0D0c
crw-------  1 rebehn root 116, 16 Jan  1  1970 pcmC0D0p
crw-------  1 rebehn root 116, 25 Jan  1  1970 pcmC0D1c
crw-------  1 rebehn root 116, 26 Jan  1  1970 pcmC0D2c
crw-------  1 rebehn root 116, 27 Jan  1  1970 pcmC0D3c
crw-------  1 rebehn root 116, 20 Jan  1  1970 pcmC0D4p
crw-------  1 rebehn root 116, 33 Jan  1  1970 timer

/dev/sound:
total 0
crw-------  1 rebehn root 14, 12 Jan  1  1970 adsp
crw-------  1 rebehn root 14,  4 Jan  1  1970 audio
crw-------  1 rebehn root 14,  3 Jan  1  1970 dsp
crw-------  1 rebehn root 14,  0 Jan  1  1970 mixer
rebehn bremerhaven [~]:

Also, alsamixer works fine and i can play mp3 files with xmms.

Any ideas?
--

Heinrich Rebehn

University of Bremen
Physics / Electrical and Electronics Engineering
- Department of Telecommunications -

Phone : +49/421/218-4664
Fax   :            -3341