alsa@xxxxxxxxxxxx writes: > If You will give some ideas on what to detect/debug etc. I'll do that. > also, it will increase my experience. and, also, I have 2 different cards. Hook up a serial console (see Documentation/serial-console.txt), try to grab the kernel messages with it. If it is a driver bug, that should bring up something. If it is a hardware lookup (due to motherboard PCI bugs) it likely doesn't help ... See also Documentation/oops-tracing.txt The kernel has a number of config options which might help debugging too. Gerd -- Michael Moore for president!