This issue persisted two reboots and was immediately disappeared after upgrading gdm3 and switching to Wayland. So it only happens when using X.org.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1970172 Title: External monitor switches to interlaced mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1970172/+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
