I think you're supposed to be able to play with PS3 players.Is this game crossplatform compatible for coop play?
Yes the game gets some bad input lag with the in-game vsync turned on. Even tested it with a 360 controller and it would also suffer just as bad with input lag. Just turned it off, never bothered trying through the control panel (I'm still on 260.99 I believe.)I had to disable in-game vsync then enable vsync and Triple Buffering in the nvidia Control Panel Portal 2 profile and set pre-rendered frames to 0 to get it to run good. I run vsync/triple buffering on all Source games and they run fine but Portal 2 gets laggy. When I disabled vsync in-game, the screen would tear so I obviously needed to use vsync. Either something is screwy with Portal 2 or the 270.61 drivers aren't playing nice with it.
Running on system in sig, 1680×1050.
I think you're supposed to be able to play with PS3 players.