Does the problem only happen when playing video?
I can see the Discord snap is flooding your system log, which can cause
freezes (usually every 5 seconds) when the kernel needs to sync/flush to
disk. So please try uninstalling the Discord snap and tell us if the
situation improves.
If the problem keeps happening then please run 'top' to check for any
high CPU users, and please also run (while the problem is happening):
journalctl -b0 > journal.txt
and attach the resulting text file here.
** Package changed: xorg (Ubuntu) => ubuntu
** Changed in: ubuntu
Status: New => Incomplete
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1899853
Title:
Screen freezing
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