Just to reiterate, scorecard here on i7-4700MQ, GeForce GT 755M, nvidia-375.66 drivers, prime profile of nvidia selected.
gnome-wayland session, gdm, KMS = total fail gnome-wayland session. gdm = total fail default (ubuntu) session, gdm KMS, = all good, happy days, PRIME Synchronization = yes default (ubuntu) session, lightdm, KMS = all good, even happier days, PRIME Synchronization = yes So just the opposite of what is stated here & elsewhere, i.e. Will Cooke - "While Wayland requires KMS (kernel mode setting) to be enabled, there is a current limitation in the nvidia driver that causes X11 sessions to crash with KMS. For this reason I am keeping KMS disabled by default, at least for now. This is not going to be fixed anytime soon, as it requires major changes in the driver. Users who want to try Wayland with nvidia will have to set modeset=1 in /etc/modprobe.d/nvidia-graphics-drivers.conf, and then update the initramfs. When KMS is enabled, GDM will start, but entering the default session will fail with no error that is visible to the user. Ideally, I think we would check if KMS is enabled with nvidia, and either show only the Wayland sessions or maybe simply default to the Wayland session." -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1697882 Title: GDM should not allow X11 sessions when NVIDIA's KMS is enabled To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/1697882/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
