Coming from Graphics flickering issue 19.04
Adding a file
/etc/X11/xorg.conf.d/20-intel-graphics.conf
containing
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TripleBuffer" "true"
Option "TearFree" "true"
EndSection
seems to fix my flickering issue sor far… time will tell.
and no, not fixed…
It seemed to have an effect on flickering ( maybe less frequent, maybe less flashy ) but still there.