- Oct 8, 2016
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The Radeon 5770 is in a 2012 Mac Pro computer from Apple. The HDMI monitor is model 12757fh from AOC. The adaptor, cable and monitor all work perfectly when connected to a new Mac Mini, but the monitor cannot recognize the signal from the Mac Pro. It's getting a signal, it just cannot deal with it. A question-mark keeps flashing on the screen.
The computer just arrived yesterday. I have never seen it run. I imagine it is in a startup screen as you would get if it were new, not into the main interface. The computer responds normally to key commands, but I cannot get anything to show up on the screen.
I get the same result when trying mini-displayport to vga. I have both kinds of adapters. I think mdp to hdmi is passive.
I am going taking the computer to the store where my plan is to try things until I get something that works.
I don't know what is most likely to work. I guess a display port monitor is the best bet, I really don't know.
Any information you can share would be very much appreciated.
The computer just arrived yesterday. I have never seen it run. I imagine it is in a startup screen as you would get if it were new, not into the main interface. The computer responds normally to key commands, but I cannot get anything to show up on the screen.
I get the same result when trying mini-displayport to vga. I have both kinds of adapters. I think mdp to hdmi is passive.
I am going taking the computer to the store where my plan is to try things until I get something that works.
I don't know what is most likely to work. I guess a display port monitor is the best bet, I really don't know.
Any information you can share would be very much appreciated.
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