[Interest] Crash with Qt application that use OpenGL

Xavier Bigand flamaros.xavier at gmail.com
Thu Apr 20 23:01:37 CEST 2017

Ok, Thank you for suggestions Sergio, I also never used Apitrace.

The black list seems to be a good thing even if it can't work for us as for
the moment we have our homebrew 3D engine that directly call opengl.
If you have tips to migrate our engine to Angle I will be interested
because the last time I took a look I fell on build issues with glew and
other dependencies we have that also includes opengl headers.

Angle seems the way we should take to improve compatibility of our
application under Windows, we have few other issues that might be related
to OpenGL. I hope that Vulkan will get a better support under Windows as it
seems much more well defined.

2017-04-20 21:23 GMT+02:00 Sergio Martins <sergio.martins at kdab.com>:

> On 2017-04-20 20:04, Xavier Bigand wrote:
>> It is not necessary a bug from Nvidia, it can comes from bad
>> parameters to functions like glDrawElements.
> Could be, but you'll have to prove it.
> I suggest:
> - Create a minimal-testcase which reproduces the problem
> - Run apitrace on it [1] (Never used it on Windows, but there are binaries
> for it)
> - Re-run the trace under apitrace, hopefully it crashes
> - Check if your hypothesis is correct (bad glDrawElements)
> - If it's an nvidia bug: Report to Nvidia, attach trace
> - If it's an nvidia bug: Open a Qt bug report so the card can be
> blacklisted
> - If it's non an nvidia bug: Report a regular Qt bug so it can be fixed,
> attach trace
> [1] - http://apitrace.github.io/#download
> Regards,
> --
> SĂ©rgio Martins | sergio.martins at kdab.com | Senior Software Engineer
> Klarälvdalens Datakonsult AB, a KDAB Group company
> Tel: Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322)
> KDAB - The Qt, C++ and OpenGL Experts

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