Comment 36 for bug 1724583

Created attachment 1228916
failed_wayland_gnome_shell_log.txt (journalctl)

Description of problem:

On a system with two graphics cards (Intel integrated graphics controller and an AMD discrete card), gnome-shell crashes in wayland mode (returns to the gdm login screen).

The machine is using the Intel integrated graphics for video output.
The AMD card has no monitors attached to it. It's only used for GPGPU computing via OpenCL.

When the AMD card is removed, gnome-shell works correctly in wayland mode.

Version-Release number of selected component (if applicable):
3.22.2-2.fc25

How reproducible:
Always.

Steps to Reproduce:
1. install second graphics card
2. boot machine
3. gnome-shell fails in Wayland mode

Actual results:
gnome-shell does not work in Wayland mode when two graphics cards are present.

Expected results:
gnome-shell should work in Wayland mode, no matter how many video cards the system has.

Additional info:

kernel 4.8.11-300

extract from lspci:

00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen
Core Processor Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Oland
GL [FirePro W2100]

journalctl log has:
Dec 07 16:32:49 localhost.localdomain gnome-shell[2222]: Can't initialize KMS backend: could not find drm kms device
Dec 07 16:32:49 localhost.localdomain gnome-session[2189]: gnome-session-binary[2189]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
Dec 07 16:32:49 localhost.localdomain gnome-session-binary[2189]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
Dec 07 16:32:49 localhost.localdomain gnome-session-binary[2189]: Unrecoverable failure in required component org.gnome.Shell.desktop
Dec 07 16:32:49 localhost.localdomain gdm-password][2164]: pam_unix(gdm-password:session): session closed for user tmp

I've attached two logs: one for booting into gdm, and one for attempting to log in using gnome-shell.