warning HP

Error Code Screen is blank or video is flashing

The screen displays no image or flickering occurs.

? What Causes This

A disconnected power cord, monitor turned off, improperly connected video cable, sleep mode on source device, or incompatible video card settings may cause this issue.

How to Fix It

  1. Confirm the power cord is securely connected to both sides.
  2. Press the front bezel power button if screen is off.
  3. Ensure proper cable connections by referring to page 7 for connection guidance.
  4. If in sleep mode: activate a keyboard or mouse input on source device.

Source: page 24 of the official manual

From the manual

Manual page 24 — HP error Screen is blank or video is flashing

This error code appears in:

HP Elitedisplay E243 23.8 Inch Monitor