Hi,I used dnf system-upgrade to upgrade from F38 to F39. After the upgrade when I booted into gdm to login and start KDE, the machine hung on KDE startup into X11. Thinking it might be an nvidia UEFI enrolment issue with the F39 nvidia drivers, I reset the machine and booted back into gdm. I then used ctrl+alt+F2 to start a terminal interface. In that terminal I went through the UEFI enrolment process but that said the drivers were already enrolled. I issued dmesg to see if there were any nvidia failure messages, of which there none, but I did notice there were initialisation and what looked like failure messages from Nouveau, but I don't understand why there would be an Nouveau messages at all when Nouveau is blacklisted in the kernel parameters in grub. I then uninstalled all the nvidia drivers that were present. I then used ctrl+alt+delete to reboot from the terminal. That process hung for 1.5 minutes waiting for a job stop (I don't remember what it was waiting on), and, when the 1.5 minute timer finished it then hung waiting for XWayland to shut down. Why was it waiting for XWayland to shut down when I don't use Wayland, I only use X11? On reboot, I started up KDE under Nouveau, which doesn't work properly with my BENQ 4K monitor, it can't determine what the monitor is, so doesn't run in the right resolutions, although it does honour the display scaling specified when using the nvidia drivers (which do recognise the monitor and set things up properly). I reinstalled the nvidia drivers and a subsequent reboot then booted into KDE with any issues (which is where I'm sending this email from). Why did this freezing of the nvidia drivers happen, is it because the F39 nvidia drivers don't work properly with an update and have to be installed from scratch to work properly? Also, after reinstalling the nvidia drivers, at the gdm login screen the display manager selection options only showed "Gnome", "Gnome Classic" and "Plasma/X11", where are the options for all of those to swap them between Wayland and X11 if I want to, that were present in F38 before the upgrade to F39?
regards, Steve
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