Cannot login in graphical interface
2850
Ubuntu gets stuck in a login loop
19348
Login screen not ubuntu's; it's Gnome's
116997
System freezes after logging in after one failed attempt
3969
Can't login to Ubuntu 14.04 after upgrade
133341
How to set up Gnome interface for HiDPI screen?
48453
Minecraft login issue
91361
Messed up my PATH environment variable and can't login to desktop
71212
login and su internals
73179
How do i apply settings for the login screen
54930
Where is the login with Stack Exchange option gone?
4949
Admin login returns 'Sorry, unrecognized username or password.'
88808
12.04 stuck at the login screen
74784
netBeans gui problem
80258
Unable to open any graphical app with "sudo"
2170
Why don't gksu/gksudo or launching a graphical application with sudo work with Wayland?
101917
I run a command sudo startx and then I can only log in as a guest
26634
How do I debug when the system freezes or when it crashes back to login?