For the past few weeks, there have been some issues with the GUI lately. I believe these issues started when I installed CUDA 9.0.

My machine:

  • GPU: GeForce GTX 1060 Mobile + Intel HD Graphics
  • OS: Ubuntu 18.10 Cosmic Cuttlefish

GUI Issues:

  1. When switching to tty1 and logging in, the login screen's mouse cursor is still there (doesn't occur anymore)
  2. Sometimes the, when I try to lock the screen, the display freezes on the Desktop and then a glitch occurs: the system menu keeps showing up multiple times on top of each other)
  3. When I login, the screen flashes a couple of times and lags a bit before rendering the desktop (I believe this is because of a new TTY is starting up for X Server, although it doesn't happen when I switch to Intel Graphics from NVIDIA X Server Settings -> PRIME Profiles)
  4. Sometimes when I logout and try to login, a "login loop" occurs where the I enter the password and the login screen keeps showing up instead of the desktop (I have to use chmod on .Xauthority to login)
  5. When I lock the screen, and close the lid (suspend) then open it again, I find myself logged out.

At first I had Ubuntu 18.04 LTS, I thought if I upgraded to Ubuntu 18.10, these issues would be fixed but nothing happened.

Other things I tried:

  1. Reinstalled the NVIDIA drivers
  2. Uncommented WaylandEnable=false line in '/etc/gdm3/custom.conf'
  3. Switched to LightDM (new issues occured so I switched back to GDM3)
  4. Reinstalled GNOME and GDM3
  5. Reinstalled X Server (using apt install --reinstall)

Is there any way to further diagnose/fix this problem? The only solution I'm thinking of is to install Ubuntu 16.04.

  • I've noticed that the root of all my problems with NVIDIA drivers is performing a apt upgrade before or after I installed the drivers. NVIDIA will automatically upgrade to the exact linux kernel it needs, and then don't touch it after that Feb 1, 2019 at 14:21

1 Answer 1


Try using this repo: https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa

And try this. Enable root for convenience: sudo -i; enter your password then

apt remove nvidia* --purge -y
apt remove wayland -y
apt autoremove
add-apt-repository ppa:graphics-drivers/ppa -y
apt update
apt upgrade --fix-missing
apt install nvidia-driver-410 -f -y
apt install ubuntu-gnome-desktop -f -y

And (seemingly always) with Nvidia you'd want to add nouveau.modeset=0 to your GRUB. Have you been checking your system log for anything peculiar?

  • By system log, are you referring to the dmesg output? Feb 1, 2019 at 11:53
  • /var/log/syslog Alternatively you can use the SystemLog GUI Feb 1, 2019 at 22:11

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.