Please try disabling fractional scaling in settings and then log in again. Also I expect using a Wayland session would not have this bug. You can select it on the login screen from the menu in the bottom right (it's the one called 'Ubuntu' and not 'Ubuntu on Xorg'). Is there any particular reason why X11 is being used here?
** Tags added: multimonitor noble ** Summary changed: - External monitor issue after dist upgrade to 24.04 + Xorg external monitor issue after dist upgrade to 24.04 ** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu) ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2084727 Title: Xorg external monitor issue after dist upgrade to 24.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2084727/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs