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 Sun, 24 Jan 2021 05:38:29 -0800 (PST)
Subject: Re: GLX and libX11
To: cygwin AT cygwin DOT com
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Date: Sun, 24 Jan 2021 14:38:28 +0100
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From: Marco Atzeri via Cygwin <cygwin AT cygwin DOT com>
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On 24.01.2021 14:05, Rafał Jopek via Cygwin wrote:
> Hello,
> 
> After starting the application, the following error appears:
> 
> $ ./quad.exe
> libGL error: Windows-DRI extension not available
> libGL error: No matching fbConfigs or visuals found
> libGL error: failed to load driver: swrast
> 
>          visual 0x224 selected
> 
> An example is here:
> https://www.khronos.org/opengl/wiki/Programming_OpenGL_in_Linux:_GLX_and_Xlib
> 
> 
> 
> ---
> Thank Csaba for helping with my previous question.
> 
> Best regards
> - Rafał

it works for me,

$ ./quad.exe

         visual 0x8c selected

and it shows a multicolor plot in a new window.

Have you started the program from inside a XTerm  with a running
XServer ?

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