Samsung LED Monitor TA950 not working with Macbook pro

I bought a Samsung TA950 Full HD LED 3D 27 inch monitor and trying to connect my MBP (early-mid 2009, does not support, MiniPort Audio). Connecting using MDP-DVI to HDMI to connect and MBP detects the monitor, I can see and change Display preferences. The monitor only flashes "no signal" when I disconnect the cables so something is happening...every so often my macbook pro display "flashes" momentarily as if it is recognizing a connection but a)nothing shows up in the display prefs after clicking "detect display" and b) nothing shows up on the external monitor. The monitor did worked and showed the MBP screen when I disconnect the cable, set the MBP display resolution to 1152 by 720, than connect the Miniport cable, the monitors flickers and shows the screen, and after a minute or 2, it goes black and goes in the loop of flickering and trying to detect the monitor

Hi, I got the same monitor the other day and there should be no problem getting it to work.
Use the DP to mini-DP cable supplied with the monitor.
Make sure this cable is plugged into the correct input DP port in the back of the monitor (not the DP port for daisychaining).
Make sure the DP input is selected in the inputs menu on screen.
Plug mini-DP end of the cable into Mac
Should work ...

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