Portal 2 is the opposite, with fglrx I can play the game maxed out and it's absolutely smooth, just like on Windows. With mesa, I have to lower some settings and still I get noticable FPS drop when walking around portals, other than that game is also smooth. I'd still gladly use the open source drivers, I don't mind the lower performance when I know it might get better in the future, hopefully, maybe. The kernel driver bothers me much more, becuase the card's fan speeds are based on its VBIOS values, which means the fan speed is at about 40%! when the card is idle, compared to 20% when using Catalyst. If this gets fixed, I can comfortly use my ATI card with the open source drivers, otherwise this forced my to unplug the card and use Intel HD4600 instead.
No announcement yet.
Catalyst 14.6 Beta Now Available For AMD Linux Gamers