So I recently got a 2nd HD5750 to put into crossfire. I have it configured properly but to my surprise, almost everything I have doesn't use the 2nd GPU. So far the Heaven benchmark is the only thing that takes advantage of crossfire. I've tried about 5 games and none of them use it. One of those games was Prey, which is based on the Doom 3 engine, which I believe is known to work in Crossfire.
Is there some trick to force programs to use both GPUs? Portal is one of those games where I'd like to see it work, since the game actually performs worse in Linux than it does in Windows (with a single GPU).
Is there some trick to force programs to use both GPUs? Portal is one of those games where I'd like to see it work, since the game actually performs worse in Linux than it does in Windows (with a single GPU).
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