How can I use the discrete graphics card in a system that only supports "Switchable Graphics"

Solution Unverified - Updated -

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Dell Mobile Precision 3000 and 5000 series laptop with only "Switchable Graphics"

Issue

  • How can I use the discrete graphics card in a system that only supports "Switchable Graphics"
  • Discrete Graphics Support on Dell Mobile Precision 3000 and 5000 series laptops

Resolution

Red Hat does not require 3D or GPGPU functionality or performance to be tested for system certification.
This system was certified using the Intel i915 video driver.

For systems with "Switchable Graphics" it is possible to run an OpenGL application on the discrete GPU by first exporting the environment variable "DRI_PRIME=1".

For more information about "Switchable Graphics" please see: "Switchable Graphics" in Red Hat Enterprise Linux

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