Public bug reported:

[Situation]

I installed ubuntu 20.04.1 on Lenovo Thinkpad P16s Gen 2, after which I
installed the GPU's driver on an external GPU (NVIDIA A500) using the
command "sudo apt install nvidia-driver-535"

Before installing nvidia-driver-535, disable nouveau as follows:

Disable nouveau:
"sudo nano /etc/modprobe.d/blacklist-nouveau.conf" 

Add:
"blacklist nouveau"  
"options nouveau modeset=0" 
 
Save:
"sudo update-initramfs -u"


After restarting the computer, I use the command nvidia-smi and I see the GPU 
status but the Volatile GPU-Util status stays at 0%.

[attempted action]

Tried to switch to nvidia GPU in BIOS but there is no such option in
Lee.

I use sudo prime-select nvidia to switch to NVIDIA GPU, but after
restarting the computer, it stays on black screen and cannot start.

[Computer Specifications]

Operator computer: Lenovo Thinkpad P16s Gen 2
Processor: 13th Gen Intel(R) Core(TM) i7-1360P
Memory: 16GB 
GPU: NVIDIA(R) RTX A500
Ubuntu version: Ubuntu 20.04 LTS
Kernal: 5.15.0-117-generic
Used driver: nvidia-driver-535

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: nvidia-driver-535 535.183.01-0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.15.0-117.127~20.04.1-generic 5.15.158
Uname: Linux 5.15.0-117-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.25
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 15 18:37:11 2024
InstallationDate: Installed on 2024-08-15 (0 days ago)
InstallationMedia: Ubuntu 20.04.6 LTS "Focal Fossa" - Release amd64 (20230316)
SourcePackage: nvidia-graphics-drivers-535
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: nvidia-graphics-drivers-535 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal

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Packages, which is subscribed to nvidia-graphics-drivers-535 in Ubuntu.
https://bugs.launchpad.net/bugs/2077086

Title:
  After installing nvidia-driver and using nvidia-smi, I can see the GPU
  but the Volatile GPU-Util field shows 0% and the screen is black after
  restarting with prime-select nvidia.

Status in nvidia-graphics-drivers-535 package in Ubuntu:
  New

Bug description:
  [Situation]

  I installed ubuntu 20.04.1 on Lenovo Thinkpad P16s Gen 2, after which
  I installed the GPU's driver on an external GPU (NVIDIA A500) using
  the command "sudo apt install nvidia-driver-535"

  Before installing nvidia-driver-535, disable nouveau as follows:

  Disable nouveau:
  "sudo nano /etc/modprobe.d/blacklist-nouveau.conf" 

  Add:
  "blacklist nouveau"  
  "options nouveau modeset=0" 
   
  Save:
  "sudo update-initramfs -u"

  
  After restarting the computer, I use the command nvidia-smi and I see the GPU 
status but the Volatile GPU-Util status stays at 0%.

  [attempted action]

  Tried to switch to nvidia GPU in BIOS but there is no such option in
  Lee.

  I use sudo prime-select nvidia to switch to NVIDIA GPU, but after
  restarting the computer, it stays on black screen and cannot start.

  [Computer Specifications]

  Operator computer: Lenovo Thinkpad P16s Gen 2
  Processor: 13th Gen Intel(R) Core(TM) i7-1360P
  Memory: 16GB 
  GPU: NVIDIA(R) RTX A500
  Ubuntu version: Ubuntu 20.04 LTS
  Kernal: 5.15.0-117-generic
  Used driver: nvidia-driver-535

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: nvidia-driver-535 535.183.01-0ubuntu0.20.04.1
  ProcVersionSignature: Ubuntu 5.15.0-117.127~20.04.1-generic 5.15.158
  Uname: Linux 5.15.0-117-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.25
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Aug 15 18:37:11 2024
  InstallationDate: Installed on 2024-08-15 (0 days ago)
  InstallationMedia: Ubuntu 20.04.6 LTS "Focal Fossa" - Release amd64 (20230316)
  SourcePackage: nvidia-graphics-drivers-535
  UpgradeStatus: No upgrade log present (probably fresh install)

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