Once upon a Tue, Jan 20 2004, Glenn McCord hit keys in the following order: > I adjusted some things. For me the realtime patch didn't work so I > reverted back to modifying capabilities.h by hand. Realtime patch? i assume you mean the realtime LSM from www.joq.us. You build it separately, although you do need to set KERNEL_DIR to your kernel-2.6.x sources because it uses the kernel's build system. Where does it fail? Also, make shure you add 'options realtime allcaps=1' to your /etc/modprobe.conf, otherwise it will not work with jackstart. Just interested, how did you modify capability.h? i couldn't get it to compile when i tried that. > So I'm thinking somethings missing in the kernel somewhere. Or perhaps > the system settings are disagreeing with the way the kernel is setup. I had problems too and discovered that i was compiling my IDE chipset support as a module that never got loaded. No UDMA is a bad thing for performance. You can check it with something like 'hdparm -d /dev/hda'. mrtn.