[Qt-interest] QGraphicsView, OpenGL, and multiple displays

Kaleb Pederson kaleb.pederson at gmail.com
Wed Apr 22 21:43:00 CEST 2009


You left the path to the image hard coded in the PyQt example.

Both work fine for me under Linux with TwinView on a NVidia 9400.  I'm
not sure where you would look for more details.

--Kaleb


On Wed, Apr 22, 2009 at 10:02 AM, Aron Bierbaum <aronbierbaum at gmail.com> wrote:
> I am writing a large PyQt application that uses QGraphicsView for the
> entire UI and have recently run into some issues with multiple
> displays. The issue is that if you drag the application from one
> display to the second display and then click on the desktop the
> texture used to render the UI is corrupted and/or disappears all
> together. The even more puzzling thing is that it does not happen on
> all machines. I have attached a simplified example in Python and C++
> to show the issue. Does this happen for anyone else? Does anyone have
> any ideas why this would happen?
>
> Thanks,
> Aron
>
> Qt 4.5.0
> Visual Studio 2008
> NVIDIA 7800 GTX (driver 182.50)
> Two monitors configured independently from each other (Dualview)
>
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