My soundcard doesn't work anymore, it used to work in 3.1

I hoped it was fixed in the last release:
Code:
 - aumix is now started as background task in knoppix-autoconfig 
 (some broken soundcards seem to block on mixer-ioctls, preventing 
 the init script to continue).
But still when I try to run aRts from KDE it says:
Code:
Error while initializing sounddriver:
device /dev/dsp can't be opened (Device or resource busy)
The soundserver will continue using the null output device.
Yes, I've tried all the other output options (OSS, ALSA, TOSS)

"sudo lspci -v" output:

Code:
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS7012 PCI Audio Accelerator (rev a0)
        Subsystem: C-Media Electronics Inc: Unknown device 0300
        Flags: bus master, medium devsel, latency 64, IRQ 11
        I/O ports at dc00 [size=256]
        I/O ports at d800 [size=64]
        Capabilities: [48] Power Management version 2
As far as I know this card is supported by the kernel.

btw, default en_US keyboard under cheatcode lang=nl is much better indeed.