I’ve been tracking this problem for some time. I’m presently using LO 126.96.36.199.0+.
I have experienced Libre Office constantly locking up my full PC. But I’ve also experience other issues with FireFox and the Mate Desktop causing problems as well. But, Libre Office will definitely cause the my Fedora 35 system to lock up.
What I have seen so far is that my RAID 0 drives aren’t recognized on boot by Fedora for some reason. It can take several reboots from a cold boot before Fedora will launch properly. Then, Mate will not wake up if the monitor is shut down for 8 to 12 hrs at a time. On the occassion that CTRL+ALT+F2 works, I now have messages saying that PipeWire is having problems. Which I have noticed with FireFox when playing videos. Or trying to record audio. It just craps out. There are times that I need to log into my PC remotely through SSH, and I find that I can kill Xorg and get the system back. Or, I have to reboot it.
So, one of the things I did with Libre Office recently was change it’s save feature from 30 minutes to every 5 minutes. Why does this make a difference, esp with all these unrelated systems seemingly having seperate issues. I think what’s happening is that the system is relying on my RAID 0 data drives to be running all the time, and when they have to spin up it causes a time out. This time out is not being handled properly by something, and that causes a cascade of failures.
Why does changing the save time affect this process. I think the drives spin down in the 30 min window. They are not the primary OS drives, but data drives. So, when Libre Office saves every 5 minutes, it keeps them running. And, thus far, after 3 days of use, the system has not locked up.
Hopefully this information helps someone keep their PC from locking up as well as tracing down the problem that is actually causing Libre Office to take down an entire pc.