I just bought and installed the game and it starts without problem, however, when in-game the whole screen blinks black constantly as I move the mouse. I tried different graphics settings but it doesn’t seem to help. The performance is fine and I can navigate and move around, scroll in and out, the problem is that it flickers and blinks black so much that its completely unplayable. It seemed though changing the HDR setting made it blink less, but not sure as it still blinks a lot.
I’m running Debian, 64 bit on GeForce GT 520M, Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz, 12 GB RAM.
So it seem to be an issue wit anti-aliasing. Turning it off solves the screen flickering.
EDIT: So it seems to be an problem with Optimus/Primus. I managed to solve it by adding this option PRIMUS_SYNC=2. ( I modified script run.sh – added export PRIMUS_SYNC=2). Will see how it affects performance.