Hi all. I recently upgraded from Mavericks to Yosemite without much issue, using UniBeast/MultiBeast.

However I realised once I started using the OS to continue some OpenGL dev that my apps were really stuttery, where they weren't prior to the update. (with no code changes, and it works fine on my real MBP).

I noticed GraphicsEnabler=No, so setting it to Yes lead to one of my DVI's no longer working (but fixed the stuttering). Obviously it used to work in Mavericks, but I can't remember how I managed to get it to work. Scouring forums and this subreddit just leads me to either outdated information or advice that simply doesn't apply to my case.

My setup is this:

2 DVI monitors

XFX HD6870 1gb ram

Installed with UniBeast and MultiBeast

Chameleon boot

Again, this used to work in Mavericks with GraphicsEnabler=Yes. I think I may have hex edited a file, but I have no idea which or to what. I'm aware the consensus seems to be that dual DVI on this card is not possible, but that just isn't true as it used to work. Sadly my backup of that install is now long gone.

Any help and advice is greatly appreciated.

submitted by g9icy
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