Thanks for the bug report. 1. Can you please run this command on the machine and send us the output?
xrandr --verbose 2. Please also run this command to send more system information: apport-collect 1792167 ** Project changed: kernel => mutter ** Project changed: mutter => mir ** No longer affects: mir ** Project changed: xorg-server => mir ** No longer affects: mir ** No longer affects: gdm (Ubuntu) ** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu) ** Changed in: mutter (Ubuntu) Status: New => Incomplete ** Changed in: qtbase-opensource-src (Ubuntu) Status: New => Incomplete ** Project changed: qt => mir ** No longer affects: mir -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/1792167 Title: Display size detected incorrectly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1792167/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs