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So, I am trying to configure my nvidia driver, installed via AppCenter, and it's not been listed in Nvidia X Server Settings as you can see here:

enter image description here

And i'm getting this error when I launch it by the console:

enter image description here

I've already did some search and tried to reinstall the driver from ppa, from .run downloaded from nvidia website and from cli 'sudo ubuntu-drivers autoinstall', but all i get is the same case. I even reinstalled the elementary itself, but nothing changes, can someone please help me? If there's any issue in my request, please tell me so I can clarify myself, thanks.

EDIT:

So, I thought it might help if I said what I'm trying to do here..

I'm looking to play CS:GO, and I just moved to Linux, on Windows, I got about 80 fps with everything in medium/high, and on Linux, I got about 40 fps with every video option in very low/low, i think it's because the GPU was in 'performance mode' on windows, set by nvidia control panel, and by what I've found on foruns, the nvidia x server settings is suppose to allow me to do that.

I don't know if that info is usefull, but it's better than none information hehehe.

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  • What's your video card model?
    – a-tokarev
    Commented Jun 23, 2019 at 8:53
  • Nvidia GeForce 930MX
    – Lucas Zorzi
    Commented Jun 23, 2019 at 15:27

1 Answer 1

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If your Terminal displays errors communicating with your display, please check two things.

  1. Go to System Settings > Displays and check if your display has been correctly detected by the system.

  2. Type in terminal: nvidia-smi

Are the driver version and GPU model shown in the output table? If not, try this procedure to reinstall the driver (worked fine for my NVIDIA card):

1) Clean the system from any NVIDIA drivers:

sudo apt-get purge nvidia*

2) Add NVIDIA PPA (if you haven't already added it earlier):

sudo add-apt-repository ppa:graphics-drivers

sudo apt-get update

3) Install the correct NVIDIA GPU driver and reboot:

sudo apt-get install nvidia-driver430

(this is the correct driver version for your 930MX GPU, as stated here)

sudo reboot

5) Check if the driver has been successfully installed:

nvidia-smi

6) Check if your system is free from the obsolete open-source "nouveau" driver:

lsmod | grep nouveau

If the output is negative for nouveau, then all is well with your installation.

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    So, i did the steps to reinstall the driver and looks like it's installed, but, when I typed nvidia-smi on terminal, i got this output "NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running." (same output before reinstall)... And now nvidia x server settings is completely blank, it doesn't have even the two options that was there before...
    – Lucas Zorzi
    Commented Jun 24, 2019 at 22:36
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    PS. When I start nvidia x server settings typing on terminal "nvidia-settings", I'm getting this message: ERROR: NVIDIA driver is not loaded ERROR: Unable to load info from any available system (nvidia-settings:1666): GLib-GObject-CRITICAL **: 19:48:44.240: g_object_unref: assertion 'G_IS_OBJECT (object)' failed ** Message: 19:48:44.242: PRIME: No offloading required. Abort ** Message: 19:48:44.242: PRIME: is it supported? no
    – Lucas Zorzi
    Commented Jun 25, 2019 at 1:14
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    If you get the error message "NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver", try disabling Secure Boot Control in BIOS.
    – a-tokarev
    Commented Jun 25, 2019 at 6:45
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    IT WORKED!!!! FINALLY!!! Before creating this post i did a lot of search, to see if i could do it by myself, but i didn't find anything about the secure boot, i would never think about it, so, thank you soooooo much for all your help, you really saved me...
    – Lucas Zorzi
    Commented Jun 25, 2019 at 22:59
  • @LucasZorzi did you had any problems with black screen after unlock your screen? or slow resume also? ps: i encoutered the same problems that you mentioned above, i have a gtx 1650
    – Thiago Dias
    Commented Oct 26, 2020 at 0:38

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