I have done all the steps in that guide. The CPU governor doesn’t seem to make any difference with this problem, it certainly makes patches play better with performance but I’ve had this crash with powersave and performance. I am currently using the lowlatency kernel from ubuntu but I was originally using the liqourix kernel, also a lowlatency kernel. I did a whole distro reinstall because I thought there might be some rogue setting causing a problem so my system is pretty vanilla at the moment other than the system settings mentioned in that article.
There are two things that I think may be involved:
- the option requires an actual RT kernel rather than lowlatency
- the realtime option conflicts with nvidia
I read that (without a particular patch) you can’t run the full RT kernel with nvidia so I am wondering if this realtime option hitting that conflict somehow. Another thing that draws me to this option is that when I first got my computer I was using the Nouveau driver and I would get system locks with ardour in the exact same way, gui completely frozen but track still playing fine. One of the ardour devs mentioned on the irc that Nouveau is not suitable for realtime operations and I discovered this on the arch wiki (the fix was not there at the time). So it is weird that now I am using nvidia I’m getting the same problem.
It seems to be related to large patches/heavy cpu use, like the audio has more priority than the graphics and they just stop working while the audio keeps going.
I haven’t experienced this with other programs though, I can run renoise, ardour, and reaper without any issue.