Videocard problem qt.qpa.backingstore: composeAndFlush: makeCurrent() failed
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Hi,
When using docking system library sometimes I get blank window and error:
qt.qpa.backingstore: composeAndFlush: makeCurrent() failed
I googled this error and as I understood it is connected with OpenGL. But many people use Linux and I use Windows 10 x64, NVIDIA GeForce GT 520M, Qt 5.14.0More details with pictures about my problem are there. From this link you can see that there is no some rules when I get errors and when I don't. As possible reasons for that I can see that in my apllication I use VTK library which has some requirements to the videocard but VTK library itself works normally on my laptop.
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Hi,
When using docking system library sometimes I get blank window and error:
qt.qpa.backingstore: composeAndFlush: makeCurrent() failed
I googled this error and as I understood it is connected with OpenGL. But many people use Linux and I use Windows 10 x64, NVIDIA GeForce GT 520M, Qt 5.14.0More details with pictures about my problem are there. From this link you can see that there is no some rules when I get errors and when I don't. As possible reasons for that I can see that in my apllication I use VTK library which has some requirements to the videocard but VTK library itself works normally on my laptop.
@Please_Help_me_D Did you try to update graphics driver?
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@Please_Help_me_D Did you try to update graphics driver?
@jsulm I just tried it but the latest version is installed. Maybe my graphic driver is old enough and it's already been few years that there is no updates for my graphic driver (as I know). In the same time maybe Qt claims some advanced video cards? Is there a way to check the compatability of my video card (and my OpenGL) and Qt?
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Did you solve this problem?
@Oh-Jongjin as I remember no, I didn't solve it. But you use laptop you may want to chose accelerated video card (laptops usually have two videocards: standard and more powerful).
On windows and NVidia right click on the desktop, NVidia, chose NVidia for your application. -
@Oh-Jongjin as I remember no, I didn't solve it. But you use laptop you may want to chose accelerated video card (laptops usually have two videocards: standard and more powerful).
On windows and NVidia right click on the desktop, NVidia, chose NVidia for your application.@Please_Help_me_D Thank your for your detailed answers :)
