XG270HU freesync monitor flicker and graphical artifacts at 100,120, and 144Hz

Hello, just picked up this monitor from Newegg and a bit bummed. looks like I might have a defective monitor, anytime I switch to the higher refresh rates (100,120, 144Hz) I get audiable pops and a horizonal line checkboard artifacts on the screen at random times. I bought this monitor for Freesync gaming so this is a must for me to get working. At 60Hz I do not get any issues only 100hz or higher. I tried testing with and without crossfire and and freesync enabled and still the same issue. Here are my system specs:I7-3820Intel DX79SR motherboard3 x 290x powercolor 290x Radeons (water cooled version) AMD Drivers tested:15.4.1 beta15.4 beta14.12 Omega official

I am having a similar issue after buying the Acer XG270HU for the FreeSync support.  I am seeing random flickering every few seconds if the monitor runs at anything higher than 60hz (freesync on, crossfire disabled). I created a short video showing what is happening, if you click at 1:15 seconds you can see the flicker twice, just keep looping the video.  Its not always in the same part of the screen and its really random but consistent.  It does not happen when I set the display to 60hz, it starts happening (even on the desktop) if the display is set to 120hz or 144hz or freesync is dynamically changing it over 60hz.  The first part of the video I zoom into show you that freesync is enabled noting the Hz changing dynamically. https://www.youtube.com/watch?v=RfRVFiH6Cw4 HardwareAcer XG270HUAMD R9 290X (Catalyst 15.5 Beta)Using Display Port 1.2 cable that came with the Acer Is this something I need to send this monitor in for service/replacement? Its brand new.

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