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Wayland not working on optimus laptop on display with proprietary NVIDIA driver.

Affected version

  • Your OS and version - Arch Linux
  • Affected Mutter version - 3.38.2 (However previously also seamed to not work)
  • Does this issue appear in XOrg and/or Wayland - Wayland

Bug summary

I am on an optimums laptop, and I wanted to try out Wayland on nvidia with proprietary drivers (with EGLStreams and no Xwayland acceleration). However if I try to, everything freezes almost immediately.

Steps to reproduce

  1. Have a display with iGPU and have another display connected to an NVIDIA GPU with proprietary drivers (like on an optimus laptop)
  2. Enable KMS, comment udev rule.
  3. Try to launch

What happened

The integrated display (which is wired to the integrated GPU) seams to work for a split second, however then everything just freezes, and ctrl+alt+f* also doesn't work.

The other monitor (which is wired to the dedicated nvidia gpu) never displays anything, just lights up.

If I connect the other monitor to the integrated gpu instead or just not connect it, mutter works.

I am mostly using GNOME Shell, however I also tried running mutter without GNOME Shell and I experienced the exact same behavior.

What did you expect to happen

I expected it not to freeze and work.

Error logs/relevant.

I'm not sure if this is the correct way, however I tried launching mutter from tty and redirecting output to file, and then force rebooting after the freeze.

mutter-Message: 22:09:51.004: Enabling experimental feature 'scale-monitor-framebuffer'

(mutter:1961): mutter-WARNING **: 22:09:51.071: Failed to initialize accelerated iGPU/dGPU framebuffer sharing: Do not want to use software renderer (llvmpipe (LLVM 11.0.0, 256 bits)), falling back to CPU copy path
mutter-Message: 22:09:51.077: Boot VGA GPU /dev/dri/card0 selected as primary

(mutter:1961): mutter-WARNING **: 22:09:52.965: failed to bind to @/tmp/.X11-unix/X1: Address already in use

(mutter:1961): mutter-WARNING **: 22:09:53.038: Lost or failed to acquire name org.gnome.Mutter.ScreenCast


(mutter:1961): mutter-WARNING **: 22:09:53.038: Lost or failed to acquire name org.gnome.Mutter.RemoteDesktop

Also, maybe primary GPU is a problem, that boot_vga is it. I see there's selection very recently merged !1562 (merged). I tried it quite recently and it didn't seam to work, however maybe I was using it wrong. Also maybe it's for GNOME 40, not 3.38.x and that's why.

Edited by Ghost User