Thanks. The common factor then in both reports of this bug is that nouveau is in use. And historically, this isn't surprising. Nouveau has occasionally had such missing textures bugs like this over the years.
Please try installing the Nvidia proprietary driver if you haven't already: sudo apt install nvidia-driver-390 Another fix which may be required at the same time, or as an alternative is to tell gdm3 to not try to use Wayland. You can do that by editing /etc/gdm3/custom.conf and uncommenting: #WaylandEnable=false -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1760201 Title: ubuntu 18.04 GDM - missing icons and letters on login screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1760201/+subscriptions -- desktop-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/desktop-bugs