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After upgrade from 17.10 to 18.04 I can't login. Each time I input password and click enter, I can see that GUI starts to load, but then kick me back out into login screen. Only thing that I found for me to work for now is to click on a gear and pick Wayland Ubuntu. I guess this is not normal.

I checked .Xauthority and removed it. I tried to reconfigure gdm3 and lightdm. I also tried to look into sources.list to find bionic beaver resources, but don't really understand what should I look in there

Anyone experienced same problem? Where should I even start to look to try to debug this issue?

Answer that worked for me: Before you enter user/password to log in into Ubuntu there is a gear icon should be available, next to "Sign In" button. Click on it and switch Wayland to Xorg, or vice-versa, for me this worked. Or fresh install...

Max Orlovsky
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1 Answers1

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I had a similar problem. NVidia drivers were installed while I had AMD Radeon graphics card. So I logged in through cltr+alt+f1 screen and purge NVidia drivers:

sudo apt-get purge "nvidia*"
sudo update-alternatives --auto x86_64-linux-gnu_gl_conf

Another working solution was to install xubuntu and choose it through gear button on login screen.

abu_bua
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Evgeny Kuznetsov
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