Try switching to a TTY when the lightdm screen comes up and running
“chown your_user:your_user .Xauthority” then try to login with lightdm.
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Confirmed on Unity for me, adding proposed and running sudo apt update
&& sudo apt upgrade works. I can boot fully with no problems into
lightdm and unity runs fine after logon.
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@lnxsurf, “deb http://us.archive.ubuntu.com/ubuntu/ bionic-proposed
multiverse main universe restricted” that line gets added to your
sources file.
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Uncomment proposed repo in `/etc/apt/sources.list` then run `sudo apt
update` then you can either install the packages you want specifically
or you can `sudo apt upgrade` to update all of them at once.
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I haven’t fully upgraded to proposed yet but adding the symlink and the
packages Alberto specified did not solve my problem.
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Title:
nvidia-390
Ive had this same problem. I have an nvidia 960m in my laptop using nvidia-390.
After I upgraded, I got the “Option is not a valid keyword...” as well. For
future refernce, you can get a rudamentary GUI
1. apt removing and apt purging all things nvidia then rebooting
2. At the GRUB screen, add
