Hi BrianD,
Thank you very much for the screenshot.
Have you made any changes in the Start menu - Settings - Accessibility - Contrast theme? If not, then the screen is clearly displaying the picture in the wrong way.
Can I assume that you have downloaded and installed drivers and firmware packages for Surface Pro 11:
Download Surface Pro 11th Edition Drivers and Firmware from Official Microsoft Download Center
But the problem remains? Considering that the external monitor does not display any anomalies when connected, and that in Teams you can share normal images with other members, this means that there are no failures at the system level.
So this is probably a screen hardware failure that needs to be handed over to the Surface technical support team for inspection and repair. I recommend connecting with Surface Live Support through the Surface App, which can help you create a service order:
Open the Surface App (usually built into your Surface device, or you can download it from the Microsoft Store if you don't have one) and follow the procedure below:
- Click "Help and Support" and then click "Get Help".
- Briefly describe your problem in the text box, such as "Surface Pro 11 screen displays abnormal color tones", and then press Enter.
- Click "Contact Support" at the bottom.
- Select "Technical Support" and click "Confirm".
- You will see "Chat support" or "phone support" options, please contact them during working hours, you will get one-to-one support services.
I wish you all the best.
Best Regards,
Mitchell | Microsoft Community Support Specialist