Can't log into my account-16.04 [duplicate]

Question

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?

Answer 1

• replace your_username, shown below, with your username

  1. boot the computer and observe the GRUB menu
  2. choose advanced options
  3. choose root access
  4. type sudo mount -o remount,rw /
  5. type cd /home/your_username
  6. type sudo chown your_username:your_username .ICEauthority
  7. type sudo chown your_username:your_username .Xauthority
  8. type reboot
  9. login like normal