Had a qemu session for dynebolic request this: sudo echo 1024 > /proc/sys/dev/rtc/max-user-freq Wasn't this set up in the kernel or some sysconfig somewhere? The original content was "64". definitely not good. I once had Rosegarden request something like this as well and thought I had fixed it. Anyway, there is nothing in .config. The rt-patched kernel .config has entries for high hardware timer set but I am using an older computer.