I tried everything here but nothing helped. What I found helped is to reinstall manually the proprietary nvidia driver(NVIDIA-Linux-x86_63-390.87.run). But only until the next restart. After that I am stuck again in a login loop and have to reinstall the drivers again. This is cumbersome and I would like a fix where I do not have to reinstall them every time. The problem seems to be that both the nvidia driver and the nouveau driver want control over something(xorg server, gpu, display)? I found this out because of this post. Specifically after running lspci -vk | grep -iA15 NVIDIA I get the line:

01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960] (rev a2)
        Kernel driver in use: nvidia
        Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia

This seems odd to me becaue of two things. I know I saw once somewhere a file that was created by the nvidia driver that read something along this:

# Nvidia driver autogenerated do not touch
blacklist nouveau
options nouveau modeset=0

Plus I followed this post and added a file /etc/modprobe.d/blacklist-nouveau.conf with this content:

blacklist nouveau
options nouveau modeset=0

and then I did:

sudo update-initramfs -u
sudo reboot

but the lspci line still shows the same drivers, notably nouveau being still there and the /var/log/xorg.0.log shows:

(II) LoadModule: "nvidia"
(II) LoadModule: "nouveau"
(EE) [drm] Failed to open DRM device for (null): -2
(WW) Falling back to old probe method for fbdev


  • How to fix the login loop without needing to reinstall the nvidia driver manually every time?
  • How to blacklist the nouveau driver?

What are not options

  • Reinstalling ubuntu is not an option.

  • Just using the nouvea drivers. I need the nvidia drivers.

Let me know if you need more info, e.g. the .xsession-error log.

  • You're using blacklist nouvea but the driver is called nouveau – Lewis Smith Oct 29 '18 at 10:52
  • That was a typo in the post not in the file – Hakaishin Oct 29 '18 at 10:55

I fixed the issue with the first answer here. This simply installed the nvidia 410.73 driver. Don't know why this works and the 390 didn't so I will leave this open in case somebody has a hint how I could get it working with the 390 driver.

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