I've been using Ubuntu 16.04 on my desktop for about 4 months now, and everything was fine until about a week ago. Now I can't log in my anymore.
Every time I type my password and click enter, the screen turns black for about 2 to 3 seconds, and then goes back to the login screen again.
There's no password error message just back to the login prompt.
I'm also 100% sure I'm entering the correct password.
this problem started just after I installed an update, could this have something to do with it?