Monitor No Signal

Check your monitor cable for any physical damage. If you notice any creases, tears, or unnatural bends, your cable might be preventing a proper connection. This applies to any dongles or adapters connected to your monitor cable.

Check your monitor cable for its version, such as your HDMI 2.0 or DisplayPort 1.2 being used for HDMI 2.1 and DisplayPort 1.4. This is especially relevant for displays with high refresh rates.

To test if your monitor cable is dead or mismatched, use the cable included with the monitor and see if your monitor gets a signal.

If you're using multiple monitors, make sure your computer is set to "Extend" or "Mirror" rather than using a single display.

On Windows, you can right-click on the desktop and select "Display Settings" and on Mac go to "System Preferences" or "System Settings" and select "Display."

Make sure your resolution and refresh rate settings are supported by your monitor. If you're playing a full screen game, it may allow you to select an unsupported resolution or refresh rate. Many games can be switched to Windowed mode by typing ALT+ENTER.

G-Sync and FreeSync are variable refresh rate (VRR) technologies. If your computer has VRR enabled and your monitor doesn't support it, the monitor might get no signal.

Any devices in the signal path, e.g., docks like Dell WD19TB, that don't support VRR could also cause a no signal.

Damaged or dirty ports on your monitor could prevent cables from seating properly. Check the ports on both your computer and monitor for any corrosion, dirt, or bent connectors. Follow this guide to cleaning the port(s).

If your port is damaged, replace the port or the monitor entirely.

If your computer has a discrete video card, it may be damaged or improperly connected. Make sure the card is properly seated and connected to power.

Outdated drivers could prevent your monitor from connecting. Download your drivers (NVIDIA and AMD) and install them.