How to restore disappeared Wayland session options under gdm3 on Ubuntu 20.04
Wayland sessions have disappeared from my gdm3 login screen. I typically use Wayland, but had switched temporarily to Xorg for a few days for a specific purpose. Now the Wayland options are gone.
Some possibly relevant observations:
What might cause the session options to disappear and how can I reinstate them? |
Rather than reconfiguring gdm3, I'd dpkg-reconfigure gnome-session-bin, or, looking at its source code, maybe just
Code:
update-alternatives --config x-session-manager |
OK just tried that; unfortunately no difference. But I appreciate the suggestion.
Do you (or anywhere else) know where I can find what decides whether or not gdm offers the wayland sessions? I'd like to systematically go through the determining factors, but have no idea what they might be. |
OK, a correction. After a reboot, the wayland entries were back. Clearly just logging out and restarting gdm from a virtual console (which is what I had been doing after each attempted change) wasn't enough.
The only trouble is, I've made a few changes since the last reboot, so I'm not sure which one did the trick. |
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