Why can t I get my second monitor to work?

Make sure the correct input (HDMI, DVI, etc) is selected using the built-in controls on your monitor. Connect another working monitor to check if the issue is with the graphics card. You may need to update the firmware of the display you’re setting up as a second monitor to fix any compatibility issues or bugs.

How do I get my computer to recognize my 2nd monitor?

Set up dual monitors on Windows 10

  1. Select Start > Settings > System > Display. Your PC should automatically detect your monitors and show your desktop. …
  2. In the Multiple displays section, select an option from the list to determine how your desktop will display across your screens.
  3. Once you’ve selected what you see on your displays, select Keep changes.

Why does my 2nd monitor say no signal?

Although getting no “signal” to your new monitor can be cause for concern, it’s arguably the easiest problem to fix. … Verify cable connections: A loose cable can cause “no signal” errors more often than any other problem. If they do seem well secured, unplug, and plug them in again just to be sure.

Why won’t my monitor recognize HDMI?

If your HDMI connection is still not working, it’s likely there are hardware issues with your HDMI port, cable or your devices. … This will resolve any problems you might be experiencing due to your cable. If changing the cable doesn’t work for you, try your HDMI connection with another TV or monitor or another computer.

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Can I have dual monitors with only one HDMI port?

Sometimes you have only one HDMI port on your computer (typically on a laptop), but need two ports so that you can connect 2 external monitors. … You can use a ‘switch splitter’ or ‘display splitter’ to have two HDMI ports.

How do I setup dual monitors with HDMI?

Dual Monitor Cables

Plug the power cords into your power strip. Connect the first monitor to your computer through the HDMI port or through a VGA port, if desired. Do the same for the second monitor. If your computer only has one HDMI port and one VGA port, which is common, find an adapter to complete the connection.

How do you set up dual monitors on a laptop?

Right-click anywhere on the desktop and select “Screen resolution” then choose “Extend these displays” from the “Multiple displays” drop-down menu, and click OK or Apply.

Why is HDMI not working?

Turn off all the devices. Disconnect the HDMI cable from the HDMI Input terminal on the TV. … Turn on the TV and connected device again to let them recognise each other. If the issue continues, repeat the process but try a different HDMI input on your TV to see if this improves the situation.

Why won’t my monitor connect?

Check Your Connections

In particular, ensure your monitor is plugged into the wall and receiving power, and double-check that the cable going to your PC is firmly plugged in at both ends. If you have a graphics card, your monitor should be plugged into that, not the HDMI port on your motherboard.