desktop-packages team mailing list archive

[Alberto Milone <alberto.milone@xxxxxxxxxxxxx>]

bumblebee and nvidia-prime won't work together. You will have to choose
one. As for gpu-manager, maybe the nvidia GPU had already been disabled
by bbswitch (as dmesg shows) when gpu-manager ran. This is probably why
gpu-manager thinks that you only have the intel GPU.

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https://bugs.launchpad.net/bugs/1446041

Title:
  Prime-select not allowing switch

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

Bug description:
  I am unable to switch to my Nvidia card from my intel card. Here are
  the details: (Ubuntu-drivers-common 1:0.2.91.7)

  BUG:
  $ sudo prime-select nvidia
  Error: alternatives are not set up properly
  Error: nvidia mode can't be enabled

  NVIDIA DRIVERS INSTALLED:
  $ dpkg -l | grep nvidia
  ii  bumblebee-nvidia                            3.2.1-90~trustyppa1                                            amd64        NVIDIA Optimus support using the proprietary NVIDIA driver
  ii  nvidia-331                                  331.113-0ubuntu0.0.4                                           amd64        NVIDIA binary driver - version 331.113
  ii  nvidia-331-uvm                              331.113-0ubuntu0.0.4                                           amd64        NVIDIA Unified Memory kernel module
  ii  nvidia-libopencl1-331                       331.113-0ubuntu0.0.4                                           amd64        NVIDIA OpenCL Driver and ICD Loader library
  ii  nvidia-opencl-icd-331                       331.113-0ubuntu0.0.4                                           amd64        NVIDIA OpenCL ICD
  ii  nvidia-prime                                0.6.2                                                          amd64        Tools to enable NVIDIA's Prime
  ii  nvidia-settings                             331.20-0ubuntu8                                                amd64        Tool for configuring the NVIDIA graphics driver

  NVIDIA CARD RECOGNISED:
  ~$ lspci | grep -E "VGA|3D"
  00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
  01:00.0 3D controller: NVIDIA Corporation GK208M [GeForce GT 740M] (rev ff)

  #ALSO NOTE THAT PRIMUSRUN WORKS FINE WITH GLXSPHERES64 WITH HIGH
  FRAMERATE

  I have attached the relevant outputs. Do let me know if you need more
  details.

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