Windows 10 not detecting external monitor – Top 4 Most Common Causes

Posted in PC Matters on Nov 13th, 2020

Windows plug and play simplifies the way customise our work PC environment e.g. the addition and removal of accessories and hardware like adding an external monitor, mouse, keyboard etc by automatically reconfiguring itself to recognise and communicate with the new device.

This is however not infallible. Here the top 4 most common causes of why Windows 10 may not detect your new monitor:

  1. Silly as it may seem, ensure that your monitor is switched on.
  2. Are you using the latest graphics driver?
  3. Are you using the correct HDMI cable?
  4. Is your monitor set to use HDMI as its input? Use the controls on your monitor to select HDMI as input