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	Tue, 24 Jan 2023 03:50:39 -0800 (PST)
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Date:	Tue, 24 Jan 2023 12:50:39 +0100
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Subject:	Re: SV: octave doesn't work any longer with qt graphics toolkit
To:	Wyser Klaus <Klaus DOT Wyser AT smhi DOT se>, "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
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From:	Marco Atzeri via Cygwin <cygwin AT cygwin DOT com>
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On 17.01.2023 12:29, Wyser Klaus wrote:
> Hej Marco---
> 
> Thanks for your reply. I tried to send the cygcheck output to the Cygwin mailing list last week, but the file was too big (2M) and the post was rejected. I therefore put the file on a temporary platform for file exchange:
> http://exporter.nsc.liu.se/2ce844aaa0014c9f9cf889f2b062fdc7/cygcheck.out
> from where you should be able to fetch it.
> 
> I tried to repeat exactly the example that you suggested, no success unfortunately. I attach the XWin logfile, maybe it helps you to spot anything.
> 
> Best wishes,
> Klaus
> 
> 

Hi Klaus,

my guess is that there is an issue with the drivers


[183955.593] (EE) AIGLX: No native OpenGL in modes with a root window
[183955.843] (EE) AIGLX error: dlopen of /usr/lib/dri/swrast_dri.so 
failed (No such process)
[183955.843] (EE) AIGLX error: unable to load driver swrast
[183955.843] (EE) GLX: could not load software renderer
[183955.843] (II) GLX: no usable GL providers found for screen 0

on my system I see

glWinSelectGLimplementation: Loaded 'cygnativeGLthunk.dll'
(II) AIGLX: Testing pixelFormatIndex 1
GL_VERSION:     4.5.0 - Build 22.20.16.4815
GL_VENDOR:      Intel
GL_RENDERER:    Intel(R) UHD Graphics 620
(II) GLX: enabled GLX_SGI_make_current_read



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