Ubuntu
mutter package

  1. Bug #1966808
  2. Comment #8

Comment 8 for bug 1966808

Revision history for this message
Daniel van Vugt (vanvugt) wrote (last edit ): Re: [amdgpu][radeon] gnome-shell Wayland sessions fail to start (Failed to lock front buffer on /dev/dri/card1: drmModeAddFB2WithModifiers failed: Invalid argument)

Please wait until you receive mutter version 42.0-1ubuntu1 in updates and then try adding this to /etc/environment:

  MUTTER_DEBUG_DISABLE_TRIPLE_BUFFERING=1
  MUTTER_DEBUG_USE_KMS_MODIFIERS=0

and then reboot.

If that fixes the bug then please try each line separately to identify which one has fixed it.