We are developping an OpenGL application using Qt for the window management.
After upgrading some machine with the latest AMD drivers, some artifacts appears, usually screen becomes black.
Graphic card: RX 6600 XT
Driver version: 31.0.12027.7000
Inside our application we have 2 OpenGL contexts one for doing the scene rendering and an other belonging to Qt.
We share one RGBA texture between the 2 contexts, once the scene rendering is finished we blit the content of the shared texture to the framebuffer's color attachment of Qt (GLWidget class)
the codes looks like this:
The screens is mostly black now. I figured if I try to read the texture's content everything works again.
The content is the one expected.
the code becomes this:
Obviously I should not add a cpu/gpu halt, I try to read only one pixel the screen is black again (half dimension seems to work)
Do you have an idea on how I can force the texture content to be actually computed. I tried to bind/unbind or to call GlTexImage2D without any success.
Thanks for your time.
