I did a bit more digging around. I had a look at the greeter log file. I have attached the greeter log file with this comment.
sudo less /var/log/lightdm/x-0-greeter.log I noticed these lines: [+0.58s] DEBUG: background.vala:67: Making background /home/mendhak/Pictures/Wallpapers/General/sunset_texture.jpg at 1440x900 [+0.58s] DEBUG: background.vala:144: Error loading background: Failed to open file '/home/mendhak/Pictures/Wallpapers/General/sunset_texture.jpg': Permission denied [+0.58s] DEBUG: background.vala:116: Render of background /home/mendhak/Pictures/Wallpapers/General/sunset_texture.jpg complete [+0.58s] CRITICAL: background_loader_create_pattern: assertion `image != NULL' failed That's a wallpaper in my own wallpaper collection. It is trying to access it and failing. On a hunch, I went in and used one of the regular/supplied wallpapers that came with Ubuntu (right click Desktop, change desktop wallpaper). That worked! I then tried to set a custom wallpaper again after doing a chmod 0777 on the entire wallpaper directory. That still didn't work, the log file still mentions permission denied. I am not sure what kind of permissions I should be setting on my Wallpapers folder. ***tl;dr: Use one of the default Ubuntu wallpapers*** ** Attachment added: "Greeter log file" https://bugs.launchpad.net/ubuntu/+bug/973993/+attachment/3114038/+files/greeterlog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/973993 Title: lightdm - can't log in - it hangs after entering password - "Logging in" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/973993/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs