[GTALUG] Can't boot using Xorg, only Wayland works on Ubuntu 18.04

[Jim Ruxton]

Thanks for the update. Great you got things working on your end as well. 
Have you tried a second monitor by any chance to see if that is working 
for you?

Jim


>> Today I got Xorg loading.
> Yay! Me too - I think we must have been working on it about the same
> time. Yes, I've found many of the same shortcomings you did in the
> current setup, but I'm confident that Ubuntu will get the upstream patch
> applied soon.
>
> Like you, I did:
>
> 	sudo apt-get purge nvidia*
>
> but I also saw this in .xsession-errors
>
> 	dbus-update-activation-environment: warning: error sending to systemd:
> org.freedesktop.DBus.Error.InvalidArgs: Invalid environment assignments
>
> which led me to this Ubuntu bug:
> https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1731614
>
> which made me try:
>
> 	sudo apt-remove --purge gdm3
> 	sudo apt install lightdm ubuntu-session
>
> Rebooting got me to the lightdm prompt, which worked for login. I think
> I'm running in unaccelerated fallback mode, but I have working graphics now.
>
> Thanks for the help!
>
>   Stewart
>