A video showing the problem.
** Attachment added: "A video showing the flashing."
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1749975/+attachment/5058155/+files/VID_20180219_103858_588.mp4
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Bugs, which is
So that we can understand what kind of graphical bug we are dealing
with, please record a video of the problem (on a mobile phone is OK) and
attach it here.
** Changed in: gnome-shell (Ubuntu)
Status: New => Incomplete
** Tags added: visual-quality
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