just some more information: cat /proc/asound/devices says: 0: [0- 0]: ctl 4: [0- 0]: hardware dependent 9: [0- 1]: raw midi 8: [0- 0]: raw midi 16: [0- 0]: digital audio playback 24: [0- 0]: digital audio capture 1: : sequencer 33: : timer lsmod: Module Size Used by snd_seq_oss 31872 0 snd_seq_midi 6944 0 snd_seq_midi_event 6784 2 snd_seq_oss,snd_seq_midi snd_seq 49296 8 snd_seq_oss,snd_seq_midi,snd_seq_midi_event usbkbd 5760 0 radeon 119588 2 parport_pc 34496 1 lp 9260 0 parport 32968 2 parport_pc,lp joydev 7872 0 ov511 94080 0 videodev 7424 1 ov511 v4l2_common 5120 1 ov511 ovcamchip 19464 0 i2c_core 18704 2 ov511,ovcamchip ppp_deflate 4864 0 zlib_deflate 21784 1 ppp_deflate bsd_comp 5632 0 md5 3840 1 ipv6 229764 8 pppoatm 4736 1 ppp_generic 25108 7 ppp_deflate,bsd_comp,pppoatm slhc 6528 1 ppp_generic speedtch 12592 1 atm 33368 4 pppoatm,speedtch autofs4 15748 1 af_packet 16648 0 pcspkr 3432 0 8139too 21504 0 mii 3968 1 8139too orinoco_pci 7424 0 orinoco 43280 1 orinoco_pci hermes 8576 2 orinoco_pci,orinoco intel_agp 18208 1 agpgart 26920 2 intel_agp slamr 376644 0 sg 28832 0 8250 17024 0 serial_core 18688 1 8250 tsdev 5504 0 evdev 7040 1 usbhid 37824 0 usbmouse 4224 0 ehci_hcd 27524 0 ohci_hcd 18692 0 snd_hdsp 48872 0 snd_rawmidi 21796 2 snd_seq_midi,snd_hdsp snd_seq_device 7304 4 snd_seq_oss,snd_seq_midi,snd_seq,snd_rawmidi snd_pcm_oss 48680 0 snd_mixer_oss 17280 1 snd_pcm_oss snd_pcm 82696 2 snd_hdsp,snd_pcm_oss snd_timer 23044 2 snd_seq,snd_pcm snd_page_alloc 9352 2 snd_hdsp,snd_pcm snd_hwdep 8452 1 snd_hdsp snd 49636 12 snd_seq_oss,snd_seq,snd_hdsp,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep soundcore 7264 1 snd uhci_hcd 28304 0 usbcore 97508 10 usbkbd,ov511,speedtch,usbhid,usbmouse,ehci_hcd,ohci_hcd,uhci_hcd ds 13828 2 yenta_socket 17536 1 pcmcia_core 53700 2 ds,yenta_socket thermal 10384 0 processor 14256 1 thermal fan 3084 0 button 5016 0 battery 7948 1 ac 3596 0 Thanks, LG Georg