Lee: > This is/was a bug or multiple bugs in the kernel's RTC driver. It > started to appear around 2.6.13 because that was the kernel release > where they regressed the default timer granularity from 1ms to 2.5ms, > forcing apps like Rosegarden to switch to RTC based timing.
No, it genuinely went from working to broken - it's not a case of always being broken but never previously being necessary. It broke first in RT kernels, so I'm guessing it broke in mainline with an RT patch merge. I'm not aware of anyone these days successfully using Rosegarden with snd-rtctimer - if anyone out there is, do say so. Either you get a 1000Hz kernel or you suffer with crap timing. Clemens: > Kernels >= 2.6.15 work. The most recent such report we had was from a user of OpenSUSE 10.1 (with 2.6.16 I think?). I suggested trying an ALSA driver upgrade; apparently it didn't help. The thread should be easily found in the Rosegarden list archives by searching for rtc and opensuse. I don't have a computer here to test it on at all myself at the moment, I'm afraid. I will do later. Honest. Chris
