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How do I switch dual monitors over?
Set the Primary and Secondary Monitor
- Right-click on your desktop and select “Display”.
- From the display, select the monitor you wish to be your main display.
- Check the box that says “Make this my main display.” The other monitor will automatically become the secondary display.
- When finished, click [Apply].
Why is my Extend these displays not working?
Make sure that your settings are on Extend these displays: In the Multiple displays sections of Displays on Windows 10, make sure the Extend these displays option is chosen. It’s a good idea to check all your Display settings to make sure they are set up for multiple monitors: Sometimes a Windows update can reset them.
How can I reset the external monitor display setting?
Usually I have the lid of the laptop closed and only use the external monitor. Just now I set the refresh rate of the external monitor to 75Hz inadvertently, and of course, the monitor says that the signal is out of range and shows a black screen. The problem is I have difficulty to change the refresh rate back to 60Hz.
How to change display to second screen only?
Change the display configuration to Second screen only (using the Windows logo key +P keyboard shortcut). Change the display configuration to Duplicate (using the Windows logo key +P keyboard shortcut again). Close the lid on the laptop computer. Unplug the external monitor. Open the lid on the computer. Plug the external monitor back in.
How to change the display configuration on a laptop?
Change the display configuration to Duplicate (using the Windows logo key +P keyboard shortcut again). Close the lid on the laptop computer. Unplug the external monitor. Open the lid on the computer. Plug the external monitor back in.
How to troubleshoot external monitor connection in Windows 10?
Troubleshoot external monitor connections in Windows 10 Before considering troubleshooting options, make sure your device is up to date. Select Start > Settings > Update & Security > Windows Update, then select Check for updates. If you need help setting up your external monitors, see How to use multiple monitors in Windows 10.