Usually bugs like this happen when the system detects different monitor capabilities, so it thinks it has a different monitor setup and reverts to a default arrangement.
Please try running: xrandr before and after sleeping, and then compare the results. ** Summary changed: - Display mode after wake-up + [nvidia] Display mode after wake-up ** Tags added: multimonitor nvidia ** Package changed: xorg (Ubuntu) => nvidia-graphics-drivers-460 (Ubuntu) ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New -- 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/1933198 Title: [nvidia] Display mode after wake-up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1933198/+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