Wayland randomly not available in GDM
Affected version
Arch Linux with Mutter 3.36.4-1 Laptop with 'Optimus': 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 630 (rev 04) 01:00.0 3D controller: NVIDIA Corporation GM107GLM [Quadro M1200 Mobile] (rev a2)
Bug summary
When rebooting, the Wayland option is sometimes not available in GDM. After another reboot, it shows up again. So it seems like some race condition somewhere.
Steps to reproduce
Reboot -> No Wayland option in GDM
Reboot again -> No Wayland option in GDM
Another Reboot -> Wayland option in GDM
Ratio is +- 1/5 times that Wayland is available
Edited by Jean-Louis Dupond