From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.7.8) Gecko/20050524 Fedora/1.0.4-4 Firefox/1.0.4 Description of problem: Choosing the "auto detection" sound system crashed kcontrol or does not find any sound system. Solution for me was to select the OSS sound system. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1.go to the kde control centre 2. choose the sound settings 3. try using the "auto detect" sound system Actual Results: either kcontrol crashed or reported no sound system Expected Results: should have detected the sound system, like in FC3 Additional info:
It seems you still have old alsa-libs. Please update alsa-lib-1.0.9rc4-2 in FC4 release, it should fix this problem.