Windows PC will not allow me to duplicate displays with Google TV, only extend.

Troubleshooting Display Mirroring Issues on Windows PC with Google TV Compatibility

If you’re experiencing difficulty duplicating your Windows PC display onto a Google TV, you’re not alone. Many users find that recent updates or certain configurations can interfere with screen mirroring features, leading to frustration when trying to share content seamlessly.

Understanding the Common Issue

Typically, users with multi-monitor setups may choose to connect their PC to a TV or external display via HDMI for presentations, gaming, or media sharing. Windows provides options to extend or duplicate displays, allowing flexibility depending on the user’s needs. However, some systems or configurations may restrict the ability to mirror screens, forcing users into extended display modes.

In some cases, when attempting to activate display mirroring (also known as duplication), Windows may momentarily go black and then prompt whether to keep or revert the changes. Repeatedly, the system reverts to extended mode instead of allowing direct duplication.

Potential Causes

Windows display settings misconfiguration
Driver issues with graphics hardware
Compatibility issues between Windows and Google TV
Updates or changes in Windows that modify default multi-display behaviors

Recommended Troubleshooting Steps

Update Graphics Drivers
Ensure your graphics card drivers are up-to-date. Manufacturers often release updates that improve compatibility with HDMI devices and display configurations.
Check Display Settings
Right-click on your desktop and select Display Settings.
Under Multiple Displays, try manually selecting Duplicate these displays.
If the option is greyed out or not working, proceed to the next steps.
Reconfigure Display Modes
Disconnect from the Google TV.
Restart your PC.
Reconnect the HDMI cable.
During Display Settings, select the primary display, hold Alt, and then click Detect.
Attempt to set the display mode to Duplicate.
Use Windows Display Troubleshooter
Open Settings > Update & Security > Troubleshoot.
Select Additional troubleshooters.
Run the Hardware and Devices troubleshooter.
Check for Windows Updates
Install the latest Windows updates, as they often include fixes for display issues.
Test with Different HDMI Cables or Ports
Sometimes, hardware faults or port issues can cause instability. Switch HDMI cables or try different ports on your PC and TV.
**Try Third-Party