Managed to reproduce on fresh download 20.10, too. OTOH, I remember seeing that gone in some cases on 20.04. I wonder what the exact cases are, as apparently this seems more complicated than "reproduces always".
** Tags added: groovy -- 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/1892136 Title: reverse prime produces corrupted output on specific resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1892136/+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