GDM: Wayland sessions most of the times unavailable on Nvidia GPU

[chrisawi (Chris Williams)]

Yeah, this looks like:

Wayland session appears in gdm only after logging in and out after updating to f39 and other weird behavior

So, as it says in the title, I am experiencing some very weird behavior of my system after updating to f39 workstation, which still persists after the next system update. What happens is that when I boot my system the only 2 options I see in gdm are gnome and gnome classic, both of which are x11. When i sign in I therefore end up in x11 session. Sometimes it takes a few attempts to log in (it just returns to the login page without showing my desktop). In order to use wayland i need to log out an…

The second user in that thread has the same log entries where gnome-shell is getting SIGKILLed. The next step is for someone affected to open an issue against mutter upstream.

It could have something to do with rtkit. Apparently realtime processes can be SIGKILLed by the kernel if they are unresponsive. There’s a similar issue reported here, but it seems to only affect amdgpu, and it happens when the screen is locked.