On Thursday, March 10, 2011 09:13:43 PM Martin Gräßlin wrote: 
> We ask the driver "which version do you use?", the driver answers "foo" and
> we write "foo" to the Konsole. It's an important debug information for us.
 
> KWin does not pick a specific version. This is highly dynamic due to the
> extension model. So it's totally possible that the driver claims to only
> support OpenGL 1.5 but brings the extensions we use from OpenGL 2, so the
> GL 2 code path is taken.
> 
> The only API version where output and used version is guaranteed to be
> identical is OpenGL ES 2.0.
> 
> Cheers
> Martin


thanks for informing me
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