Update: Adding a Display subsection to the Screen section of my xorg.conf, specifying a Virtual size equal to the size of the external problem has solved the issue for me.
Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" SubSection "Display" Virtual 1280 1024 EndSubSection EndSection -- xorg uses laptop video BIOS 'Panel Size' for external monitors, so apps end up confined to small space in top left of screen https://bugs.launchpad.net/bugs/200805 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs