Which graphics card do I need for LG27UD88 monitor that will give me Super High Resolution and Deep Color (10 bits) on HDMI? I am using a Radeon RX460-4GB card and I am getting a one second blink, the screen goes black for a second every five minutes on average. Also the screen will flash too at random times. If I turn off Deep Color in the monitor's menu, then there is no blinking.