So here's the story. I magically managed to intsall OSX Mountain Lion with a HD 7870 in it. Everything seems to be working finely except one thing. The monitor cant really stretch the screen.
As you can see, the resolution is set to 1920x1080 but there's a slight black part left out on the right side. I know its pretty early to even ask for support for these cards, but I was wondering if i'm alone or anyone experienced anything like this with other nVidia or ATI cards.
One thing to note , that my monitor have been acting weirdly in the previous months even before the OSX install. Windows couldn't recognize the monitor properly. It sad something like that it's an unsupported PnP monitor and no 16:9 resolution was available by default so I had to add it manually in AMD control panel. Now in OSX the resolutions are recognized but cant stretch it properly.
Thanks for taking the time reading this !