Unable to login after upgrading to 19.10 from 19.04

Question

I just upgraded to Ubuntu 19.10. Upgrade was done via update manager GUI. I am using nvidia as a graphics driver.

After upgrade I get logged in but I get this screen:

How do I troubleshoot this?

I ran sudo dpkg --reconfigure -a. This resolved the first problem, but now I am at the login screen and unable to login.

I have looked at this question here:my .xauthority and .iceauthority permissions are correct although .xauthority is 0KB. /tmp permissions are also correct. I don't have lightdm installed.

I have also checked the Xorg.log and .xsession log. Renamed the extensions folder as well as the .xauthority file. no luck.

On the login screen where you enter your password, click on the gear and try the different options -- should be gnome, gnome on xorg, ubuntu, ubunton on wayland. Maybe others. There are some known issues with nvidia but I'm not sure if this is one or not: https://wiki.ubuntu.com/EoanErmine/ReleaseNotes — Wayne Vosberg, Oct 17 '19 at 16:02
Should be right next to the Sign On button. If not, you may have only one environment installed. If you can get to a console login try sudo apt-get install xorg xwayland gnome — Wayne Vosberg, Oct 17 '19 at 16:07

score 4 · Answer 1 · answered Oct 17 '19 at 16:24

4

I had automatic login enabled. I just updated this file: /etc/gdm/custom.conf

and commented out these lines:

AutomaticLoginEnable=True
AutomaticLogin=username

After this I am able to login. Is this a bug?

answered Oct 17 '19 at 16:24

user1373927

71

worked for me - thank you! – Randomize Oct 17 '19 at 18:08
Worked for me with path /etc/gdm3/custom.conf (see the 3?) – pommedeterresautee Oct 25 '19 at 10:31

Unable to login after upgrading to 19.10 from 19.04

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