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You need a computer or console to plug into it? I had to use the display port cable that came with it for my computer to show it up. Try another cable or reboot the PC?
Sorry, there was a problem. Please try again later.According to the manual, the "input signal not found" message is indicating that a video cable is disconnected. Be sure that the computer power is off while you connect the video cable. I would also recommend double checking the input on the monitor. Make sure it is set to the correct input setting. If you are still having issues, I would recommend contacting HP Support. Here's the link for HP Support: https://support.hp.com/us-en/contact-hp . Alternatively, you can reach them by phone at 1-800-474-6836.
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