It may have been a hardware problem, but not the sound card. I ended up measuring latencies using cyclictest which was giving me shocking numbers. At the end (cpufreq, rt kernel were in between attempts) it ended with disabling C1E CPU state in the BIOS. For the record it is a Phenom II X2 CPU on a AMD 785G motherboard. Tvrtko _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user