ls -al /home/kenc/.*thority

-rw------- 1 kenc kenc 314660 Jul 23 19:10 /home/kenc/.ICEauthority
-rw------- 1 kenc kenc     58 Jun 23 13:05 /home/kenc/.Xauthority

-rwxrwxrwx 1 root root 314660 Jul 23 19:10 /home/kenc/.ICEauthority
-rwxrwxrwx 1 root root     58 Jun 23 13:05 /home/kenc/.Xauthority

sudo chown kenc:kenc .ICEauthority
sudo chown kenc:kenc .Xauthority
sudo chmod 600 .ICEauthority
sudo chmod 600 .Xauthority