reset video for display ?

Is it at all possible to reset the video driver with a hackintosh ?

The reason I ask is due to an issue I have noticed.

I purchased a miniDP to HDMI cable which should support 4k "@60Hz"

So I swapped my current "miniDP to DP" cable which I was successfully running 4k "60Hz" for weeks with the new miniDP to HDMI but i'm not getting 4k "60Hz", max is 4k "@30Hz"

Further to that, if i now switch back to my "miniDP to DP" cable which was running 4k "60Hz" I am now only about to get 4K "@30Hz"

What gives ?

submitted by /u/ithakaa
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