[sagher]

For the OpenGL version:

Code: (Select All)

$ glxinfo | grep "OpenGL version"
OpenGL version string: 3.0 Mesa 20.2.4

OR, with more info:

Code: (Select All)

$ glxinfo | grep "OpenGL"
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 2500 (IVB GT1)
OpenGL core profile version string: 4.2 (Core Profile) Mesa 20.2.4
OpenGL core profile shading language version string: 4.20
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 20.2.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 20.2.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

For the GPU unit:

Code: (Select All)

$ glxinfo | grep 'OpenGL renderer string'
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 2500 (IVB GT1)

OR, with more verbosity:

Code: (Select All)

$ glxinfo -B
name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
   Vendor: Intel Open Source Technology Center (0x8086)
   Device: Mesa DRI Intel(R) HD Graphics 2500 (IVB GT1) (0x152)
   Version: 20.2.4
   Accelerated: yes
   Video memory: 1536MB
   Unified memory: yes
   Preferred profile: core (0x1)
   Max core profile version: 4.2
   Max compat profile version: 3.0
   Max GLES1 profile version: 1.1
   Max GLES[23] profile version: 3.0
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 2500 (IVB GT1)
OpenGL core profile version string: 4.2 (Core Profile) Mesa 20.2.4
OpenGL core profile shading language version string: 4.20
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.0 Mesa 20.2.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.0 Mesa 20.2.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00

If you don't have glxinfo in your system, then install the glx-utils package if you're on CentOS/Fedora systems, or the equivalent on the other distros.

Otherwise, use the standard lshw command:

Code: (Select All)

sudo lshw -numeric -C display

I have Debian 9 x64, these commands giving E: unable to locate error. please guide me step by step