Go to terminal mode → Ctrl + Alt + F1/F2
When you read the /var/log/Xorg.0.log you find the reason why.
The nvidia driver doesn’t support this version of ABI.
You have to downgrade the Xorg to 1.18.4 urmpi --downgrade xxxx doesn’t do the trick with me.
First modifie /etc/urpmi/skip.list so in won’t update x11-, add.
/^x11-/
Remove Xorg: urpme x11-server-xorg
Make note of the rpm’s that also will removed: eg task-x11 task-plasma task-plasma-minimal etc etc.
Purge auto orphans: urpme --auto-orphans
Reboot:
If after reboot you haven’t a GUI login, but a terminal.
Login in as root and start sddm (service sddm start) or install and start the service.
Check before login that de default WindowManger is plasma
Check with MCC → Service, if sddm is enabled on boot.
The nVidia(340) version doesn’t not support the higher version of ABI in Xorg 1.19.0
You have to wait till nVidia release a update of al his ‘long term’ drivers that are compatible with Xorg 1.19.0
Not only the latest: 375.26
After a few days out of town…
An update of dkms-nvidia340 (340.101) …
Works fine with Xorg 1.19.0 and kernel 4.8.x
With kernel 4.9.x the nvidia kernel module won’t load at all.