Detect your Windows 11 second monitor.
Open parameters and selectSystem>Display>Multiple displays.
Select eitherDetectto scan for a second monitor connected by cable orConnectif your second monitor is using a wireless connection.
Turn your second monitor on.
Power cycle your second monitor.
Switch it off, wait at least 30 seconds, and then turn it on again.
This method can help your Windows 11 equipment detect it by resetting the connection.
Change the Windows 11 project tweaks.
PressWindows key+Pand select a different project setting for your second monitor.
Wirelessly cast with the Google Chrome net web client instead.
It tends to be much more reliable and stable than the Windows operating systems primary casting option.
Manually change the monitors input prefs.
Most monitors have physical buttons to select different input signals and display options.
Its possible that the monitor isnt automatically detecting your Windows 11 computer.
Change the monitors brightness and contrast parameters.
Using your monitors physical buttons, increase its contrast and brightness.
Its possible that your monitor is actually working, but its display is set to the darkest tweaks.
Try alternative power sources.
Check the monitors cable connections.
Ensure that all of the connecting cables are fully seated on both the monitor and computer ends.
Try a different cable connection.
The original port may be the incorrect one, or it could even be damaged.
Your Windows 11 computer may support image output via a USB-C port.
This port can be a convenient alternative if the primary HDMI port isnt working properly.
A quick, basic restart with the second monitor connected can help your setup detect it.
Windows updates often include fixes for display and hardware bugs that can affect connected devices such as second monitors.
Remove other devices from the dock.
Check the cable compatibility.
Your monitors manual should have details on which cable jot down to use.
If you cant find it in the manual, check the manufacturers website.
Test the connecting cable.
Swap out the cable connecting your Windows 11 computer to the second monitor for another one.
If the new cable works, then the previous cable is likely damaged.
If the new cable doesnt work, the fault likely lies elsewhere.
Swap out the second monitor for another one.
If this new monitor works then the problem lies with your original monitor.
Test your second monitor with another computer.
If it works there, the fault is likely with your original hardware.
Change the monitors refresh rate.
Incompatible refresh rates can sometimes cause a lack of image on a second monitor.
Restart the video driver.
PressWindows key+Ctrl+Shift+Bto restart the Windows 11 video drivers.
Update the display drivers.
This option can fix a variety of Windows hardware issues, including those that affect second monitors.
Reinstall the display drivers.
OpenDevice Manager, expand theDisplay adaptorsmenu, right-click your adapter, and selectUninstall rig.
The restart process should automatically trigger the reinstallation of the correct drivers.
OpenDevice Driveronce again, select theActionmenu from the top toolbar and then chooseScan for hardware changes.
Some of the most common include:
