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The HP Community is where owners of HP products, like you, volunteer to help each other find solutions.
HP Recommended
OMEN by HP 40L Gaming Desktop PC GT21-0000i IDS Base Model
Microsoft Windows 11

This has happened twice and with internet search and HP search I was able to get the monitor up again.  The monitor is completely black with nothing to navigate.  I have to blindly shut down the Omen by powering it off which I really do not like shutting down the Omen arbitrarily without the proper shutdown procedure feeling that is not really good for it.    It seems unplugging a Belkin USB hub that I have my keyboard, mouse and an external drive attached to it allows the monitor to speak to my Omen again.  The Belkin was attached to a USB on the back panel of my Omen desktop.  The monitor is connected by HDMI cable also to the back panel of the Omen.   Is this problem  the Belkin USB hub, the monitor or the Omen??   The monitor worked quite well on my old HP Envoy.

HP Recommended

Can anyone please help??????

HP Recommended


Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help, to provide an accurate resolution, I need a few more details:

  • Did this happen after a recent window or software update?
  • Have you made any hardware/software changes?

Perform a power reset (or hard reset) of your desktop computer to clear information from the computer memory without erasing personal data.

  • Turn off the computer.
  • Disconnect the AC adapter.
  • Disconnect all nonessential peripheral devices, such as printers, scanners, external hard drives, and USB flash drives.
  • NOTE: Do not disconnect your mouse, keyboard, or monitor.
  • With the AC adapter unplugged, press and hold the power button for approximately 15 seconds.
  • After you drain the capacitors, reconnect the AC adapter. Leave peripheral devices disconnected.
  • Turn on the computer.

And, also run the Extensive Test if no system component failed during the Fast Test.

  • Hold the power button for at least five seconds to turn off the computer.
  • Turn on the computer and immediately press esc repeatedly, about once every second. When the menu appears, press the f2 key.
  • On the HP PC Hardware Diagnostics (UEFI) main menu, click System TestsExtensive Test.
  • Click either Run once or Loop until error.
  • While the test is running, the time remaining and test result for each component is displayed on the screen.
  • If a component fails a test, write down the failure ID (24-digit code) for when you contact HP Customer Support. The information is also available in Test Logs on the main menu.

Hope this helps! Keep me posted for further assistance.
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