This monitor is less than 2 years old and has just started having this problem: It will be working fine and the power light is light blue. Then I notice the power light starts to flash yellow and after a few minutes the light goes out completely. The monitor continues to operate for a few minutes then it just goes completely black. No image at all. I have to unplug it and plug it back in again and it starts to work again. It works for a while and then goes through the same thing. It's not like it is going on stand-by because I am still using the computer when it goes black. I am using an HDMI cable for the connection.
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