I did some research on my soundcard problem and via lsof | grep "dsp" (LiSt Open Files) I found out that "ogg123" is keeping my sound devices open. Killing ogg123, an ogg player similar to mpg123, doesn't help (ps -A | grep "ogg123" and kill - 9 {process numbers}).

Now I get " can't start sound i/o" when running artsd or use the KDE configpanel.

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
Apropriate dmesg output:
Code:
Intel 810 + AC97 Audio, version 0.21, 15:49:30 Mar 26 2003
PCI: Found IRQ 11 for device 00:02.7
i810: SiS 7012 found at IO 0xd800 and 0xdc00, IRQ 11
i810_audio: Audio Controller supports 2 channels.
ac97_codec: AC97  codec, id: CMI65(Unknown)
i810_audio: only 48Khz playback available.
i810_audio: AC'97 codec 0 Unable to map surround DAC's (or DAC's not present), total channels = 2
I'm pretty shure that my card is supported by the kernel (heck the dsp* devices exist) by the i810 module.

[edit]Something 'fishy' I found out. Doing a modprobe -r i810 doesn't remove /KNOPPIX/dev/dsp* which it should do, isn't it? Could it be that some other driver gets his hands on the card first so i810 doesn't recognise it anymore? Changing the order the order modules are loaded could help then.

Does anybody know more about this?