I have tried answers from here but it has not worked for me.
.Xauthority is owned by myself.
.xsession-error shows:
openConnection: connect: No such file or directory
cannot connect to brltty at :0
upstart: gnome-session (Unity) main process(2743) terminated with status 1
upstart: unity-settings-daemon main process (2735) killed by TERM signal
upstart: Disconnected from notified D-Bus bus
upstart: upstart-dbus-session-fridge main process (2659) terminated with status 1
upstart: bamfdaemon main process (2644) killed by TERM signal
upstart: hud main process (2733) killed by TERM signal
upstart: unity7 prestart process(2737) terminated with status 143
upstart: logrotate main process (2540) killed by TERM signal
upstart: unity-panel-service main process (2750) killed by TERM signal
Can someone advice me how overcome the login loop problem so that I can gain access to my desktop.
Update: I found 3 interesting post. One strategy is to go all out to disable nouveau so that installation of NVIDIA-Linux-x86_64-375.39.run can be done. Eg1 and Eg2. My issue looks identical to them. However, I was not able to execute the procedure described in by Eg2 (I used sudo instead of doing it as root). So I pursued a second strategy that is to install ubuntu repository Nvidia driver "without X/ in console" as described in ubuntu help wiki. I ran these commands:
sudo service lightdm stop
sudo apt-get --purge remove xserver-xorg-video-nouveau
sudo update-initramfs -u
sudo ubuntu-drivers devices
sudo apt-get install nvidia-375
sudo service lightdm start
I was returned to my login window. I tried to login but am still unsuccessful. The login loop persists.
Update2: Just tried rebooting. During bootup, I get a popup window saying
"The system is running in low=graphics mode. Your screen, graphics card, and input device setting could not be detected correctly. You will need to configure these yourself."
After clicking ok, I get another popup window that shows 4 options:
What would you like to do?
Try running the default graphic mode.
Reconfigure graphics.
Troubleshoot the error.
Exit to console login.
However, the radiobuttons on the left of these options don't seem to work. I found out that these pop up windows are appearing in tty2 or Ctrl+Alt+F2.
