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Black screen after few seconds of working

INKARDASH
Level 7

Hi. Has anyone seen the same?

The monitor is just out of the box. And it works few seconds (sometimes minutes) after turning on. The screen turns black, while the LED indicator is still glowing with white color. Onscreen menu doesn't work. Nothing happens untill i power-cycle or re-connect the video cable.

I've tried both HDMI and DP. Tried different cables and source devices (PC, Mac, few other windows laptops).

Even with no any device connected, I'm trying to cycle thru the OSD menu and few seconds later monitor turns off till next power-cycle. Any ideas or similar experience?

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