2018-10-25 ubuntu界面循环登录

From: https://stackoverflow.com/questions/48201511/ubuntu-asking-for-password-again-and-again

I had the same problem on Ubuntu 16.04LTS 64bit.
My nvidia driver was the reason of it.
I dont't know the details.

However removing nvidia-340 package fixed the trouble
(apt-get remove nvidia-340).

// do not need to rm .Xauthority or .ICEauthority
sudo apt-get remove nvidia-384 && sudo reboot