Created attachment 1288255 [details] journalctl output from boot and login through GDM to wayland GNOME session Description of problem: I have a Clevo P670SE (System76 Oryx Pro). It has a hybrid GPU. I have disabled the hybrid GPU in the BIOS and run only on the discrete GPU. $ lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation GM204M [GeForce GTX 970M] (rev a1) GDM starts up fine. The 'GNOME on Xorg' session runs fine. The 'GNOME (on wayland)' session locks up with graphical glitches (looks like garbage GPU buffer stuff) immediately after logging in. I've attached the journalctl boot log. There is a flood of this message hitting the log: Jun 15 21:35:28 oryx kernel: nouveau 0000:01:00.0: fifo: PBDMA0: 00006000 [GPFIFO GPPTR] ch 26 [00bc230000 Xwayland[1639]] subc 0 mthd 0000 data 00000000 If I run a GNOME session like so: dbus-run-session -- gnome-shell --display-server --wayland, the desktop starts up correctly. This exact same hardware configuration ran the wayland session correctly in F25. Version-Release number of selected component (if applicable): gdm-3.24.2-1.fc26.x86_64 xorg-x11-server-Xwayland-1.19.3-4.fc26.x86_64 libwayland-server-1.13.0-1.fc26.x86_64 gnome-session-wayland-session-3.24.1-1.fc26.x86_64 libwayland-client-1.13.0-1.fc26.x86_64 libwayland-cursor-1.13.0-1.fc26.x86_64 mesa-libwayland-egl-17.1.2-2.fc26.x86_64 ibus-wayland-1.5.16-2.fc26.x86_64 How reproducible: Always Steps to Reproduce: 1. Log into 'GNOME' session 2. 3. Actual results: Session locks up, requiring a hard reset of the computer Expected results: Session to log into the gnome desktop Additional info:
Look here: https://bugzilla.redhat.com/show_bug.cgi?id=1457626 https://fedoraproject.org/wiki/Common_F26_bugs#Wayland_sessions_crash_on_start_on_some_NVIDIA_graphics_cards.2C_logs_show_fifo:_read_fault_error
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