Question

4

Laptop using 14.04 won't get past login GUI

rated 0 times [ 4] [ 0] / answers: 1 / hits: 13514 / 2 Years ago, thu, march 24, 2022, 4:58:42

My laptop was working perfectly yesterday, and now today I can't log in.

At first, I was only getting a black screen. However, after following instructions in some questions here on AskUbuntu, I first reinstalled lightdm, and then I had to change the ownership of the file ~/.Xauthority to be my user name. Now, I get the log in GUI screen.

However, once I enter my username, it flickers and then comes back to the login GUI. It does not matter if I use Gnome, Unity, or Gnome-Flashback.

I don't know why lightdm needed to be reconfigured, or how ~/.Xauthority got changed, but in any case, what is still standing in my way, preventing me from logging in?

Update: I have tried deleting the .Xauthority file, and the .profile files in my home directory. It has not changed anything.

Logging in as guest also fails to work.

The following commands did not work:

mv ~/.config ~/.config.BAK

mv ~/.cache ~/.cache.BAK

Inside .xsession-errors in my home directory, it says:

Gdk-CRITICAL: gdk_x11_display_get_xdisplay: assertion 'GDK_IS_DISPLAY (display)' failed

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

ongdiligenc

Add To Favorites

Follow

Total Points: 452

Total Questions: 111

Total Answers: 107

Location: Ukraine

Member since Sun, Dec 13, 2020

3 Years ago

ongdiligenc questions

1 Steam app not launch on X11

Wed, Apr 13, 22, 10:34, 2 Years ago

1 Screen recorder not working on Ubuntu 22.04

Tue, Jun 7, 22, 00:54, 2 Years ago

1 When to disable root account on ubuntu server

Sat, Aug 7, 21, 00:37, 3 Years ago

1 No space left on device on root

Sat, May 22, 21, 03:06, 3 Years ago

1 How to run commands without sudo on Ubuntu startup

Tue, Mar 1, 22, 10:05, 2 Years ago

View All

answered 2 Years ago taigysel · Accepted Answer

I fixed my issue.
I had this repository

deb http://ppa.launchpad.net/eugenesan/ppa/ubuntu trusty main

in my list. That repository yesterday updated these 4 packages to a custom version (based on GNOME 3.12):

ubuntu-session

gnome-session-common

gnome-session-bin

gnome-session

I downgraded these packages to the version 3.9.90-0ubuntu12 and after a sudo service lightdm restart all is working, up and running.

To downgrade from command line:

sudo apt-get install --reinstall gnome-session-bin=3.9.90-0ubuntu12

sudo apt-get install --reinstall gnome-session-common=3.9.90-0ubuntu12

sudo apt-get install --reinstall gnome-session=3.9.90-0ubuntu12

sudo apt-get install --reinstall ubuntu-session=3.9.90-0ubuntu12