Windows 11 multiple display connection failure due to HDCP Restrictions.

Hi Chandana Gurunath Rao,

Welcome to Microsoft Community.

Here are a few suggestions to help you troubleshoot and potentially resolve the issue:

1. Update Display Drivers: Ensure that you have the latest display drivers installed for your Acer laptop. Visit the Acer support website or the website of the graphics card manufacturer (e.g., Intel or NVIDIA) to download and install the most up-to-date drivers compatible with Windows 11.
2. Update Firmware: Check if there are any firmware updates available for your USB-C to Dual HDMI Adapter. Visit the manufacturer's website for the adapter and download any available firmware updates. Updating the firmware may help resolve compatibility issues.
3. Disable HDCP: Temporarily disabling HDCP might help determine if it's causing the issue. To do this, follow these steps:
   • Right-click on the desktop and select "Display settings."
   • Scroll down to the "Advanced display settings" section and click on "Display adapter properties for Display X" (where X represents the secondary display).
   • In the properties window, navigate to the "Monitor" tab.
   • Uncheck the box that says "Hide modes that this monitor cannot display."
   • Click "Apply" and then "OK" to save the changes.
   • Repeat these steps for each secondary display.
   Disabling HDCP may allow you to browse websites without the secondary displays turning off. However, keep in mind that HDCP is an important content protection feature, and disabling it may prevent you from accessing certain content that requires HDCP.
4. Check USB-C Adapter Compatibility: Verify that the USB-C to Dual HDMI Adapter you're using is compatible with Windows 11 and supports HDCP. Check the manufacturer's website or contact their support for any known compatibility issues or firmware updates specific to Windows 11.
5. Contact Support: If the issue persists, it's recommended to reach out to the support channels of both Acer and the manufacturer of the USB-C adapter. They can provide more specific guidance or potential solutions based on your laptop model and the adapter you're using.

It's worth noting that compatibility issues can sometimes arise due to a combination of hardware, drivers, and software updates. Hopefully, one of these suggestions will help you resolve the issue or at least narrow down the potential causes.

Please feel free to let me know if you have any questions.

Kind regards,

Manson | Microsoft Community Support Specialist

Hi Manson,

Thanks for the response. It appears there is a firmware issue which i have discussed with the manufacturer of the HDMI Adapter.

My setup is still not providing the desired results, but that seems to be more of an adapter fault and not something specific from the windows side.

In the future, if i am able to rectify the problem with the adapter manufacturer and face any further problems with windows, i will certainly reach out.

Thanks for the proactive response and sorry for a delay from my end.

Regards,

Gurunath Rao.

I haven't received the message from you yet. If there is anything more that I can do for you or if anything is unclear, please do not hesitate to let me know.

Thanks a ton for the reply. Will try these fixes and update if any one of them worked out for me.