In a multiple GPU system where one smaller card is used for monitoring, and the others (more powerful) for multi-channel output, it seems that GPU performance is determined by which GPU is assigned the main display in Windows, correct? (that is my conclusion after a few tests, anyway)
Of course, one can assign the main display to the more powerful GPUs, but…
The problem with this is obviously that for a visual performance, it is not optimal to have the blended screens as the main display because you’ll get all dialogue boxes and start-up screens onto that spanned desktop.
I have tried everything I could think of from Windows 7 side and the desktop management options supplied by the driver. Not a solution.
So: is there a way to determine which GPUs vvvv will use for acceleration, other than the method above?