After the upgrade, the system boots to a blank screen. Cntrl+Alt+F1/F2 doesn't do anything ... but the system is running, I can ssh to it, and ALT+PrtScr+B will trigger a reboot.
Doing an SSH the system does start wayland (it is running), but the screen is blank.
Things I tried:
When booting at recovery mode, the screen freezes after a while. I suspect the system is running (since I can do Alt+PrtScr+B to reboot), but something it starts that is not the console is not working -- I can't check since it doesn't start sshd, and I can't login to the machine.
Nvidia driver version is 410. But i just tried the 390 as well.
I tried starting Xorg manually (/usr/bin/Xorg) from my ssh, and it works. I just run /usr/bin/Xorg (root) and then set DISPLAY=:0.0 and gnome-shell and I get a working Xwindows for rooot.
I also tried a newest kernel (4.19-rc8 I think) recommended in another post, but didn't help.
Any suggestions ? Any error messages / files I should be looking at ?
Is there a way to make gdm work with Xorg instead of Xwayland until it works ?
many thanks in advance for any pointers!
ps.: I've seen a bunch of similar questions, but none of the answers seem relevant.
After some more digging, I found how to force gdm to use only Xorg:
Now the system is usable again -- albeit without Xwayland.