This is still happening, so I decided to see if using wayland would help, but it is the same. Here I'm enclosing an interesting screen shot (partial screen only) showing that when you hit f5 in libreoffice presenter, it thinks the screen is the upper left part of the screen. I thought this might be a hint, because, you could look at what routines libreoffice was calling for the slide show, and it might give a hint as to where the problem lies.
Rob ** Attachment added: "gnome_bug_2020-02-14_05-22.png" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1859774/+attachment/5328056/+files/gnome_bug_2020-02-14_05-22.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1859774 Title: Full screen window becomes "small" in the upper left of the screen... Status in gnome-shell package in Ubuntu: New Bug description: This happens with a number of different programs, so I suspect it is a window manager bug. The best way to describe it is with a screen shot. The only responsive part of the screen is the small window in the upper left. You can hit the little maximize box and it goes back to full screen okay, but after a while it comes back to this. It can be annoying, because sometimes you can't quickly see what happened to the title bar. I'm using Ubuntu 19.10. This has been happening for about a week. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1859774/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
