9

After an otherwise uneventful upgrade from 14.10 to 15.04 I cannot login. When I provide my password the screen flickers briefly and I am back at the login screen.

I have checked permissions on .Xauthority and they are set correctly.

I have also tried creating a new user, but the same problem persists.

Before reverting to the login screen I momentarily see an alert box "System program problem detected." I do not know if this is relevant to the issue.

My /var/log/lightdm/x-0.log contains this as the last line:

error setting MTRR (base = 0....) Invalid argument (22)
mac
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2 Answers2

9

I fixed this problem by removing the nvidia drivers

sudo apt-get remove --purge nvidia-*
sudo apt-get install ubuntu-desktop
Max Dolgih
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-1

You can try this first, here is a link. Ubuntu gets stuck in a login loop

If worse comes to worse you can remake the live USB. I would recommend Unetbootin as it really easily helps you to make it. The links for Unetbootin is here http://unetbootin.sourceforge.net/. And the one for Ubuntu is here .http://www.ubuntu.com/download/desktop.

When you go back with the new USB, you can reinstall cleanly for sure that way.

Hope this helps. Good Luck!

Community
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Apad121
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