"Ubuntu on Wayland" Login Option Sometimes Disappears

[James]

Recently I upgraded from Ubuntu 18.04.4 LTS to 20.04 LTS, which is now running gdm3 version 3.34.1-1ubuntu1.

Before upgrading, "Ubuntu on Wayland" would always be an option for the drop-down menu at the point I'm prompted to enter my login password. This is my default setting, since other options do not work with my display.

Since upgrading, "Ubuntu on Wayland" sometimes appears and sometimes does not when I boot my machine. I would expect to see this option all the time. No pattern in appearance has yet been identified. The only workaround I have for now is to reboot my machine X (usually two or three) times until "Ubuntu on Wayland" appears.

When I have successfully logged in under "Ubuntu on Wayland", I can see "WaylandEnable=false" commented out in /etc/gdm3/custom.conf as expected and I have made no alterations to this file.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gdm3 3.34.1-1ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: talpa_vfshook talpa_pedconnector talpa_pedevice talpa_vcdevice talpa_core talpa_linux talpa_syscallhook
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri May 1 07:54:34 2020
InstallationDate: Installed on 2018-12-12 (505 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

I believe the Wayland option gets removed automatically if the login screen itself failed to start using "Wayland".

To find out what's going on, please reboot fresh as much as you can and next time the problem occurs:

1. Log in to the only option 'Ubuntu'.

2. Open a Terminal and run:

   journalctl -b0 > journal.txt
   lspci -k > lspcik.txt

   and attach the resulting text files here.

[Launchpad Janitor (janitor)]

[Expired for gdm3 (Ubuntu) because there has been no activity for 60 days.]