Public bug reported:

I am using Ubuntu 16.04.1 LTS on a Clevo P65XSE-A with a Intel HD 5500
(I think!?) and a GTX 970m

When using a new NVIDIA driver from the graphics ppa
https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa

I noticed when switching back to the Intel card via "sudo prime-select intel", 
the NVIDIA card stays on.
When launching gpu-manager via terminal it tells me it can't unload 
nvidia_modeset and nvidia_drm modules.

Should probably use libkmod2 like bumblebee
https://github.com/Bumblebee-Project/Bumblebee/pull/762


Unloading nvidia-uvm with "no" parameters
rmmod: ERROR: Module nvidia_uvm is not currently loaded
Unloading nvidia-modeset with "no" parameters
rmmod: ERROR: Module nvidia_modeset is in use by: nvidia_drm
Unloading nvidia with "no" parameters
rmmod: ERROR: Module nvidia is in use by: nvidia_modeset

** Affects: ubuntu-drivers-common (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  I am using Ubuntu 16.04.1 LTS on a Clevo P65XSE-A with a Intel HD 5500
  (I think!?) and a GTX 970m
  
  When using a new NVIDIA driver from the graphics ppa
  https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa
  
  I noticed when switching back to the Intel card via "sudo prime-select 
intel", the NVIDIA card stays on.
  When launching gpu-manager via terminal it tells me it can't unload 
nvidia_modeset and nvidia_drm modules.
  
  Should probably use libkmod2 like bumblebee
  https://github.com/Bumblebee-Project/Bumblebee/pull/762
+ 
+ 
+ Unloading nvidia-uvm with "no" parameters
+ rmmod: ERROR: Module nvidia_uvm is not currently loaded
+ Unloading nvidia-modeset with "no" parameters
+ rmmod: ERROR: Module nvidia_modeset is in use by: nvidia_drm
+ Unloading nvidia with "no" parameters
+ rmmod: ERROR: Module nvidia is in use by: nvidia_modeset

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https://bugs.launchpad.net/bugs/1615058

Title:
  gpu-manager fails to unload NVIDIA modules

Status in ubuntu-drivers-common package in Ubuntu:
  New

Bug description:
  I am using Ubuntu 16.04.1 LTS on a Clevo P65XSE-A with a Intel HD 5500
  (I think!?) and a GTX 970m

  When using a new NVIDIA driver from the graphics ppa
  https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa

  I noticed when switching back to the Intel card via "sudo prime-select 
intel", the NVIDIA card stays on.
  When launching gpu-manager via terminal it tells me it can't unload 
nvidia_modeset and nvidia_drm modules.

  Should probably use libkmod2 like bumblebee
  https://github.com/Bumblebee-Project/Bumblebee/pull/762

  
  Unloading nvidia-uvm with "no" parameters
  rmmod: ERROR: Module nvidia_uvm is not currently loaded
  Unloading nvidia-modeset with "no" parameters
  rmmod: ERROR: Module nvidia_modeset is in use by: nvidia_drm
  Unloading nvidia with "no" parameters
  rmmod: ERROR: Module nvidia is in use by: nvidia_modeset

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