Check that PRIME offloading is working

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3

How do you offload a flatpak application to run on the nvidia graphics card when using prime?

rated 0 times [ 3] [ 0] / answers: 1 / hits: 3269 / 2 Years ago, sun, june 19, 2022, 2:42:04

For some flatpak applications, it is better to use the dedicated GPU but how do you ensure that PRIME is offloading correctly when you cant run the usual testing commands inside the sandboxed applciations?

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answered 2 Years ago epypian · Accepted Answer

Check that PRIME offloading is working

This is better answered in this question: https://askubuntu.com/a/1316539/253247

Install the flatpak GPUViewer application.

Set Application for offloading

Then you must change add the required environment variables in order to activate the GPU offloading:

via cli

# for OPENGL

flatpak override --env="__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia" full.application.Name

# for vulkan

flatpak override --env="__NV_PRIME_RENDER_OFFLOAD=1" full.application.Name



# for our testing we will do OpenGL with the GPUViewer application

flatpak override --env="__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia" io.github.arunsivaramanneo.GPUViewer

Flatseal

Testing

Launch GPUViewer and go to the OpenGL tab, You should see the Nvidia graphics cards selected. If it still shows the Intel card then the offloading is not working.