I see a fix has been applied to 5.4.0-37-generic which hasn't percolated
down yet. Has this fix been pushed to 5.7 and 5.8?
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https://bugs.launchpad.net/bugs/1887155
Title
Using Ubuntu desktop and GDM3 the flickering doesn't occur (but I can't
log back in from lock). Using any other DM and DE the flickering occurs.
It appears unrelated to compositing as I've tried it with and without
compositing enabled.
It's weird as other reports of flickering seem to observing f