Black screen after updating of nvidia drivers

Graphics / Linux Linux
1

Hello everyone,

I use Kubuntu 20.04 and have GTX 1080 TI. I decided to update videocard drivers and after that I have an issue.
When I try to load the system I faced with black screen (without cursor). I tried to remove drivers and after that I could see all gui interfaces (but couldn’t use some features like nvenc). Then I have tried to reinstall nvidia drivers and again faced with black screen.
I have tried to install different versions of the drivers but always I saw black screen after that.
Every time when I removed drivers I could use my system. But then I have downloaded drivers from nvidia site, not from repository, and tried to install by .sh file. Now I see black screen and can’t remove the drivers by apt remove nvidia*.
Can someone help me with it?

Maybe it will help:

$ sudo modprobe nvidia -vv
modprobe: INFO: ../libkmod/libkmod-module.c:892 kmod_module_insert_module() Failed to insert module '/lib/modules/5.4.0-135-generic/updates/dkms/nvidia.ko': Operation not permitted
modprobe: ERROR: could not insert 'nvidia': Operation not permitted

$ xrandr --listproviders
Can't open display

lspci | grep "VGA"
26:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)

$sudo systemctl enable nvidia
Failed to enable unit: Unit file nvidia.service does not exist.

I also tried to add nomodeset in grub but this is can’t help.

2

Please check secure boot status.

3

Sorry, what do you mean?

As I wrote earlier, I first installed drivers from the official repository, after which I encountered a black screen. After removing the drivers with apt purge nvidia* I was able to boot the operating system but only using nouveau. Only after several attempts to install drivers through the repository, I tried to install using the .run file downloaded from the nvidia site.
Now I tried to uninstall the driver using the same .run file, but I see an error: “There is no NVIDIA driver currently installed.” When I try to remove it with sudo apt purge nvidia* I get an error: “Unable to locate package nvidia.log Couldn’t find any package by glob ‘nvidia.log’”. However, when I try to install using ubuntu-drivers install I see a message that nvidia drivers 525 are already installed.

4

Please check secure boot status. in bios.

points to it, unsigned module.

1 Like
5

O my God! You are right! Secure boot was Enabled. I disabled it and now I can see my kubuntu with all interfaces. Thank you very much!
But I little nervous about this option. Does it somehow effect to my windows 10 which installed on the same PC?

6

Maybe Windows 10 will complain about it. If you’re nervous about it, reenable secure boot, then reinstall Ubuntu and during install choose to “install third-party software”. This way you should get a signed driver that will work with secure boot.

1 Like
7

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