I've moved some old tearing bugs in here since I now understand it's just a bug in the Xorg modesetting driver, which is the one that most machines use:
https://gitlab.freedesktop.org/xorg/xserver/issues/244 ** Summary changed: - Fullscreen windows (like Totem) are tearing in gnome-shell Xorg sessions + Fullscreen windows (like Totem) are tearing in Xorg sessions ** Summary changed: - Fullscreen windows (like Totem) are tearing in Xorg sessions + Fullscreen windows are tearing in Xorg sessions -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1754284 Title: Fullscreen windows are tearing in Xorg sessions To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1754284/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp