Additional information that might matter... I have a second monitor connected via HDMI output. Monitor is 1600x1200 and is rotated 90 degrees. It had problems on 18.04 with Wayland (https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1808226) and I have attached the output of xrandr when run from Xorg.
This does matter. I rebooted with the second monitor not connected and the problem with the menu does not occur. ** Attachment added: "xrandr.txt" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1808398/+attachment/5222187/+files/xrandr.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1808398 Title: top right menu does not display when activated To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1808398/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
