Gateway 9150XL notebook with CS461x chipset. Fresh install - no sound under KDE.
Ran harddrake and tried to configure sound. Appeared not to work until I check the kmix settings and found all outputs set to MUTE and 0 volume. There is definitely NO mixer after initial install, but after running harddrake then rebooting - then setting the kmix volumes and mute off - things work now. This wasn't happening before. Let me know if you need some logs or details. Cheers, R.Fox