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May be you have a bad HDMI cable. Please check.
Sorry, there was a problem. Please try again later.Without knowing more, it's impossible to say. The problem could be with the monitor, the cable, or the computer. The first step is to make sure that the cable is fully inserted on both ends. From there, the easiest thing to do is to swap out the cable for a different one to see if the problem goes away. If it's not that, try borrowing a computer and hooking it to the monitor. If the problem still exists, you've narrowed the issue down to the monitor, and you'll need to contact the HP support team to see if they can resolve the issue.
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