unity - Recent update has me stuck in a log in loop

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so tried rebooting pc , won't let me log in. kicks me log in screen

i've tried rm./home/*/.xauthorith cannot remove directory

and few of other more common ones purging nvidia. said no nvidia purge

in terminal, type (use correct username):

cd /home/your_username ls -l .iceauthority # (that's lower case l) ls -l .xauthority   # (that's lower case l)

if either ls command returns 1 of these (where shows root, instead of username):

-rw------- 1 root root 242476 nov  6 12:48 .iceauthority -rw------- 1 root root 58     nov  6 12:48 .xauthority

then type (changing your_username correct username):

sudo chown your_username:your_username .iceauthority

and/or

sudo chown your_username:your_username .xauthority

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