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Question QPixmap: It is not safe to use pixmaps outside the GUI thread 

Forum: (Graphical) User Interfaces
Date: 21 Aug, 2018
From: filippo <filippo>

Hi!

I'm using Qt4 for my application and when using multi-thread mode after a couple of beamOn I get the warning:

QPixmap: It is not safe to use pixmaps outside the GUI thread

then the visualization freeze.

Sometimes in the same condition I get the error:

Fatal IO error 11 (Resource temporarily unavailable) on X server :0.

Running in single-thread or in csh session using OGL the application works fine.

Is this a Geant4 issue or is a problem of my operating system/videocard driver?

Thank you and best regards

Filippo

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