I'm not exactly a developer but I was not able to find any useful info anywhere else so I am trying here.
Recently I bough HD 7970 as a present to my brother. Card is very fast and capable of running anything he can throw at it. Surprisingly, when playing a full screen game on the primary monitor and everything on the second (extended) monitor lags at a rate of 1 fps (even gifs in the forum). How is that even possible for such a powerful card? This is happening ONLY when application is in true full-screen mode (games) and not maximized borderless screen. Any ideas for me to try?
Win 8 customer preview 64 bit
Driver downloaded by auto detect tool from radeon support site. (win8 consumer preview.exe 64bit)
Yes, is was behaving the same way on Win7 64bit. Do you thing it might be a hardware issue? I have never seen anything of the sort in all of my years in IT.
Oh man. That sounds frustrating.
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