Running Linux Mint 21.3 EDGE Cinnamon iso. Linux kernel 6.5.0-41. Not sure what happened here or what the cause was, occasionally happens when using Firefox. It'll bug out like this for a few seconds, then when I move my curser over it everything goes back to normal.
I've also experienced an issue where, when opening a tab or doing something in Firefox (usually Google docs), the entire system will randomly do a partial reboot? best way I can explain it is it'll go black, flash (what I assume is) the BIOS terminal screen, then load in my lock screen; all my open softwares will have closed out and I'd have to open it again. Idk if the system is rebooting fully when this happens or not but it sure as hell feels like it.
Are these related? are they Firefox issues or is something fucky with my drivers?
I've verified everything is up to date like 6 times just in case.
Update: Have not personally resolved either issue. unsure if they are unrelated. I can't seem to replicate the issue, unsure if they will be resolved by a random update or not, though the issues do seem to be fairly recent and known about; see comments for what I found on the Internet.
If that's the login or lock screen, Cinnamon won't be handling them.
As for restarting Cinnamon, Alt+F2, r, Enter is the mild restart. There's also a deeper restart accessible through Melange, Cinammon's debugger.
By default, it's bound to Meta+L and in its bottom right drop-down, there is an option to Restart Cinnamon.
What's the difference? For one it definitely clears up zombie child processes that Cinnamon might be ignoring. (It might have also ironed out refresh rate issues and screen-tearing that the milder restart didn't help with, but my setup has changed a bit since then.)
Always worth a try if the first one doesn't seem to sort a problem out. Definitely worth it when the next two options are log out and back in, or reboot.
(Just be careful when clicking because the next menu option is "Crash Cinnamon".)