Xlib: extension "GLX" missing on display ":0"

Technical Support
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Hi Jeremias, thank you for your fast reply.

This is the output from glxgears:

torizon@e374aeebd4f9:/$ glxgears
Xlib:  extension "GLX" missing on display ":0".
Error: couldn't get an RGB, Double-buffered visual

I forgot to mention that I tried DISPLAY=:0, DISPLAY=:0.0, DISPLAY=:0.1, DISPLAY=:1.0, DISPLAY=:1.1 and DISPLAY=:1, all with glxgears and with Ogre’s SampleBrowser, with the same results.

The output from glxinfo is:

torizon@e374aeebd4f9:/$ glxinfo
name of display: :0
Xlib:  extension "GLX" missing on display ":0".
Xlib:  extension "GLX" missing on display ":0".
Segmentation fault

With a DISPLAY different from :0 or :0.0, the error is:

torizon@e374aeebd4f9:/$ glxinfo
Error: unable to open display :0.1