I've applied the realtime-lsm 0.1.1 patch but I stll get this. I'm pretty sure I've followed the instructions properly. $ jackstart -R -v -d alsa -d hw:0 jackstart: cannot get realtime capabilities, current capabilities are: =ep cap_setpcap-e probably running under a kernel with capabilities disabled, a suitable kernel would have printed something like "=eip" I've applied it to a 2.6.7 and 2.6.8.r1 kernel but I should think that makes little difference. I'm getting really tired of chasing the 2.6 kernels to make them work as well as my 2.4.22. I gave up trying 6 months ago and it looks like nothing has improved. <sigh>