Ubuntu is not accepting my password after opening the GUI

[dcwilson042]

Ubuntu was installed Friday, I closed it down prior to leaving for the day, on Monday I started Ubuntu up. On the login screen it displayed my name and a blank field to input my password. I entered my password and it looked as though the password worked, however the login screen reappeared. FYI - I entered an invalid password and it recognized it as an incorrect password.

[schragge]

Are you still able to log in on a text console? Press Ctrl+Alt+F2 to change to the 2nd text console, and try to log in. To log out, press Ctrl+D. To change back to GUI, press Ctrl+Alt+F7.

[Mikhail.Inspired]

Can you log into your account via the Ctrl+Alt+F1 display?

[Mikhail.Inspired]

Can you log into your account via the Ctrl+Alt+F1 display?
If so, one way to possibly reset it is to run

sudo passwd *insert username here*

After doing that, you should be able to reset the password to your original one, or a different one if you wish.

[dcwilson042]

I have follow the instruction from these responses and appreciate the directions, however I am stil in the same situation and cannot log into the GUI of ubuntu. Is there something more I should do?

[steeldriver]

Please log in at the virtual terminal (Ctrl-Alt-F1) and check the ownership and permissions of your home dir and ICE / X authority files e.g.

ls -ld ~
ls -l ~/.{ICE,X}authority

[kgriff]

I'm having the same issue. Mine started after installing AMD proprietary drivers, having them fail to work, then uninstalling. This was all done following the linked instructions on AMD's website. First reboot after the uninstall, and I can't login as me. (Additionally, my username had changed to the Full Name specified on the account). I could still logon as Guest. I changed the Username on my account back to what it used to be, but still cannot login.
I can login, using my correct Username and password, from TTY1. Even so, I did sudo passwd *insert username here* and was able to set my password, even though I was setting it a password that already works.

Also, as my account is Administrator, every time I sudo I have to use my password, and it has continued to work.

Please log in at the virtual terminal (Ctrl-Alt-F1) and check the ownership and permissions of your home dir and ICE / X authority files e.g.

ls -ld ~
ls -l ~/.{ICE,X}authority

Doing the above I get

-rw------- 1 username username 1908 Mar 5 17:12 /home/username/.ICEauthority

-rw------- 1 root root 251 Mar 5 16:43 /home/username/.Xauthority

Anyone have any idea how I should proceed?

[steeldriver]

Your .Xauthority file needs to be owned by you (if it's owned by root, then your X session can't start)

Either

sudo chown username:username ~/.Xauthority

or (doesn't need sudo since you own the containing dir)

rm ~/.Xauthority

In the latter case the file will be regenerated on your next successful X session

[kgriff]

Not to hijack the thread, but could this permission have been changed by installation of the AMD drivers and, if so, could that have been the cause of the failure of the drivers to work? When I booted after installing the AMD drivers, I would boot to the generic background screen, but without anything else on the screen. (No clock, network indicator, Dash, launcher, nothing)

[steeldriver]

in my experience, it's usually caused by starting an X server using sudo - either by doing 'sudo startx' or possibly by doing 'sudo X -configure' or 'sudo Xorg -configure' to generate a new xorg.conf file