[Interest] QQuickWindow Transparent Window Issues on Windows NVIDIA GPU

[Furkan Uzumcu]

Thank you Henry. I’ll try updating the driver on that machine.

I recently tried on a newer system, and that one also had problems with transparent windows.

Here’s the specifications for that one:

> 3D Device
> Vendor : NVIDIA Corporation
> Video Processor 1 : Intel(R) UHD Graphics Family
> Video Processor 2 : Quadro P2000 with Max-Q Design
> Video Memory : 1023 MB
> Video Driver File Version : 26.20.100.7529OpenGL Support
> OpenGL Version : 4.6.0 NVIDIA 432.13
> OpenGL 2.0 - Supported
> OpenGL Shader Objects - Supported
> OpenGL Vertex Shader - Supported
> OpenGL Fragment Shader - Supported
> OpenGL Vertex Buffer Objects - Supported
> OpenGL Frame Buffer Objects - Supported

I’ll try updating the driver on the other one and see if it makes a difference. Thanks for the reply.

Regards,
Furkan Üzümcü
On Aug 4, 2020, 11:15 -0400, Henry Skoglund <henry at tungware.se>, wrote:
> Hi, I think GTX 950M is too old (the laptop is from 2015) for Direct3D 12, see for example: https://www.nvidia.com/en-us/geforce/forums/discover/234361/gtx-950m-dirextx-12/
>
> Also, the driver for the Intel HD 4600 is a bit old, try updating it from 20.19.15.4549 to 20.19.15.4853, it might help for the transparency problem.
>
>
> On 2020-08-04 17:02, Fabrice Mousset | GEOCEPT GmbH wrote:
> > Hello,
> >
> > If you are targeting Windoows10, you could try to use Direct3D 12 renderer with Qt 5.15.x è https://doc.qt.io/qt-5/qtquick-visualcanvas-adaptations-d3d12.html
> >
> > Regards
> >
> > Fabrice
> >
> > Von: Interest <interest-bounces at qt-project.org> Im Auftrag von Furkan Uzumcu
> > Gesendet: Dienstag, 4. August 2020 16:33
> > An: interest at lists.qt-project.org
> > Betreff: [Interest] QQuickWindow Transparent Window Issues on Windows NVIDIA GPU
> >
> > Hello everyone.
> >
> > I’ve been having this issue on NVIDIA cards on Windows in all versions from Qt v5.12.2 to v5.15.0. I created a ticket here: https://bugreports.qt.io/browse/QTBUG-85524
> > But I wanted to reach out to see If anybody else encountered this. I’m not that well versed in this issue. I’m trying to research to see If there’s anything I can do about it or find a work around. There’s a few other related tickets in QTBUG but they don’t really offer a clear (At least to me) definition of the problem.
> >
> > If anyone with the same problem can share their experience or provide any insight, I’d appreciate it.
> >
> > Regards,
> > Furkan Üzümcü
> >
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