I just wanted to state that this issue seems to have resolved itself. I've grabbed the updated packages from apt and these are what I believe the relevant updates were. Is there any more information that might be more useful?
Start-Date: 2018-07-10 18:20:32 libwayland-egl1-mesa:amd64 (18.0.0~rc5-1ubuntu1, 18.0.5-0ubuntu0~18.04.1) 2018-07-19 21:31:00 gdm3:amd64 (3.28.2-0ubuntu1.2, 3.28.2-0ubuntu1.3) gir1.2-gdm-1.0:amd64 (3.28.2-0ubuntu1.2, 3.28.2-0ubuntu1.3) libgdm1:amd64 (3.28.2-0ubuntu1.2, 3.28.2-0ubuntu1.3) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1760201 Title: ubuntu 18.04 GDM - missing icons and letters on login screen with nouveau + Wayland Status in linux package in Ubuntu: Incomplete Status in mesa package in Ubuntu: Confirmed Status in mutter package in Ubuntu: Confirmed Bug description: WORKAROUND: Edit /etc/gdm3/custom.conf and uncomment: #WaylandEnable=false --- Ubuntu 18.04(Updated 30.03.2018) System Language: Turkish Please check screenshots --- ApportVersion: 2.20.9-0ubuntu2 Architecture: amd64 CurrentDesktop: GNOME DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-03-24 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180324) Package: gnome-shell PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Tags: bionic Uname: Linux 4.15.0-13-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1760201/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp