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Ubuntu - GPU - OpenGL - Get OpenGL Info

glxinfo | grep OpenGL

returns:

OpenGL vendor string: AMD
OpenGL renderer string: Radeon RX 7900 XTX (gfx1100, LLVM 15.0.3, DRM 3.48, 5.19.0-43-generic)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 22.3.0-devel
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 22.3.0-devel
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 22.3.0-devel
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 does not use the GPU but the CPU instead to render the computer graphics.