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Ubuntu - GPU - Mesa

Mesa is an open source 3D computer graphics library that provides a generic OpenGL implementation for rendering three-dimensional graphics on multiple platforms.

Install Mesa Utilities

sudo apt install mesa-utils

Get info

glxinfo | grep OpenGL

returns:

OpenGL vendor string: X.Org
OpenGL renderer string: AMD Radeon RX 5700 XT (NAVI10, DRM 3.38.0, 5.8.1-050801-generic, LLVM 10.0.1)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 20.3.0-devel (git-b38879f 2020-08-17 focal-oibaf-ppa)
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.3.0-devel (git-b38879f 2020-08-17 focal-oibaf-ppa)
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 20.3.0-devel (git-b38879f 2020-08-17 focal-oibaf-ppa)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:

NOTE: If in the OpenGL renderer string: you only see llvmpipe, that means your system doesn't use the GPU but the CPU instead to render the computer graphics.

3D acceleration

Determine whether 3D acceleration is working:

glxinfo  | grep rendering

returns:

direct rendering: Yes

The output should be: direct rendering: Yes.

Testing performance

To see how many frames per second your video card is putting out, run the following command:

glxgears -info

NOTE: The gears test is not very effective, many drivers work very well with a bad FPS in this test.

References

https://www.mesa3d.org/

https://wiki.debian.org/Mesa

Wiki

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