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How do OpenGL programs behave with multiple graphics cards on Linux (X11)?

April 26, 2017cards graphics linux OpenGL Programs X11

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How do OpenGL programs behave with multiple graphics cards on Linux (X11)?

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• A: Normally, the OpenGL commands are only send to the card belonging to the screen used to open the display connection to the X server. That means that when Xinerama is used to virtualize the graphics cards, the window will only display OpenGL content on one card.