Good morning everyone, Ok, now here's some output showing that only 2 cards are recognized. I've done this after removing ~/.asoundrc and restoring modules.conf to original form. Have to figure out why the third one doesn't work. I guess it's no hardware problem, for the cards are almost unused. ------------------ [EMAIL PROTECTED]:~$ cat /proc/asound/cards 0 [CMI8738MC6 ]: CMI8738-MC6 - C-Media PCI CMI8738-MC6 C-Media PCI CMI8738-MC6 (model 55) at 0x9400, irq 10 1 [CMI8738MC6_1 ]: CMI8738-MC6 - C-Media PCI CMI8738-MC6 C-Media PCI CMI8738-MC6 (model 55) at 0x9800, irq 5 [EMAIL PROTECTED]:/media$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: CMI8738MC6 [C-Media PCI CMI8738-MC6], device 0: CMI8738-MC6 [C-Media PCI DAC/ADC] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: CMI8738MC6 [C-Media PCI CMI8738-MC6], device 1: CMI8738-MC6 [C-Media PCI 2nd DAC] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: CMI8738MC6 [C-Media PCI CMI8738-MC6], device 2: CMI8738-MC6 [C-Media PCI IEC958] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: CMI8738MC6_1 [C-Media PCI CMI8738-MC6], device 0: CMI8738-MC6 [C-Media PCI DAC/ADC] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: CMI8738MC6_1 [C-Media PCI CMI8738-MC6], device 1: CMI8738-MC6 [C-Media PCI 2nd DAC] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: CMI8738MC6_1 [C-Media PCI CMI8738-MC6], device 2: CMI8738-MC6 [C-Media PCI IEC958] Subdevices: 1/1 Subdevice #0: subdevice #0 ------------------- Clemens Ladisch wrote on 02.05.2006 17:51: Well I actually didn't think that would be necessary for playback, only for multichannel recording.How do you synchronize their sample clocks? I will try anyway, and if synchronizing problems occur, maybe I'll try the hardcore version described here, which deals with triggering a second card with the crystal of the first one. Until now, I believed those bindings from the .asoundrc prevented unsynced playback. Thanks for your help Rolf |