Same here, it stared in Chrome maybe a week ago but now it also affects Chromium.
In addition to that opening a new window results in a window that does not update its content, there is just snapshot of whatever was on the screen below the window. Usually maximize/restore fixes it. Ubuntu 20.04 kernel 5.4.0-52-generic #57-Ubuntu SMP Thu Oct 15 10:57:00 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Chromium 86.0.4240.75 snap Google Chrome 86.0.4240.75 Intel Corporation Iris Plus Graphics 655, using xorg 'intel' driver, using xorg because Wayland crashes on my system. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/1899270 Title: Chrome on Ubuntu, press F11 for full screen and the message flashes continuously Status in chromium-browser package in Ubuntu: Confirmed Bug description: After pressing F11 there's a text box at the top of the screen with the message Press F11 to Exit, etc. Usually this goes away by itself after a few seconds. Now it flashes continuously and won't clear. Pressing F11 again quits full screen mode, but the tab is still flashing in some way and the whole browser is now unstable and not usable. Chrome: Version 86.0.4240.75 (Official Build) (64-bit) System: Ubuntu Studio, Distributor ID: Ubuntu Description: Ubuntu 20.04.1 LTS Release: 20.04 Codename: focal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1899270/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp