Acer KG251Q monitor is flickering/glitching/double image

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Cattreen
Cattreen Member Posts: 4 New User

Its normal for about 20 minutes after I turn on the pc. Then its become static/glitching like the gif above. Then I have to unplugged the electric cable to monitor for about 20 minutes for it to return to normal for the next 20 minutes, then its static/glitching again. The cycle repeats. When the pc is turned off but the electric cable still plugged in, there is still static/glitch at the bottom of the screen. I've tried using new cable but still not works.  The problem is probably in the monitor, but I dont exactly know what. Please help how to fix this. Sorry for bad english.

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