Created attachment 1238086 [details] Shows the journal log of two failures and X11 log info from when wayland is disabled. Description of problem: When using wayland for gdm, the screen flashes black repeatedly, preventing using the computer (except via ssh...) When using: WaylandEnable=false in /etc/gdm/custom.conf I can successfully log in, so it seems to be wayland related. Version-Release number of selected component (if applicable): $ rpm -qa | grep wayland libwayland-cursor-1.12.0-1.fc25.x86_64 wayland-protocols-devel-1.7-1.fc25.noarch xorg-x11-server-Xwayland-1.19.0-2.fc25.x86_64 libwayland-client-1.12.0-1.fc25.x86_64 kf5-kwayland-5.27.0-2.fc25.x86_64 mesa-libwayland-egl-devel-13.0.2-2.fc25.x86_64 mesa-libwayland-egl-13.0.2-2.fc25.x86_64 wayland-devel-1.12.0-1.fc25.x86_64 gnome-session-wayland-session-3.22.2-1.fc25.x86_64 ibus-wayland-1.5.14-3.fc25.x86_64 libwayland-server-1.12.0-1.fc25.x86_64 $ rpm -qa | grep nouveau xorg-x11-drv-nouveau-1.0.13-1.fc25.x86_64 How reproducible: Completely reproducible. If I comment out WaylandEnable=false in /etc/gdm/custom.conf it occurs. Also, if I use the Fedora-Workstation-Live-x86_64-25-1.3.iso the bug occurs. Steps to Reproduce: 1. Boot live cd, and use regular graphics mode. 2. (Don't use the safe graphics mode) Actual results: Screen is black and flashes about once a second. Expected results: Screen displays gdm, and then I can log in. Additional info: Attached a journalctl log of two cycles of this failing. The video chip is is NVIDIA C51. ( NVIDIAR GeForce 6150 + nForce 430 ) If there is any other output or tests you want me to run, I would be happy to do so.
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