You have been subscribed to a public bug: On upgrading from Ubuntu Mate 20.10 to 21.04 I observed screen flickering.
I observed the same on clean install of Ubuntu Unity. I eventually fixed this by following this advice: https://askubuntu.com/questions/1231441/ubuntu-screen- flickering/1231443#1231443 Create file /etc/X11/xorg.conf.d/20-intel.conf : Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "sna" Option "TearFree" "true" EndSection My graphics card is Intel. ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: bot-comment -- Screen flickers in Ubuntu Mate 21.04 and Ubuntu Unity 21.04 https://bugs.launchpad.net/bugs/1921595 You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
