"Mode not supported", when try to connect to TV

When I try to connect my Lenovo T440s to my TV using VGA cable, I get a "Mode not supported" message on the television screen and the laptop screen goes black.  Some points that may make it easier to troubleshoot: 1.  I was able to connect to this laptop successfully to this TV on prior occasions.  2. I am able to connect this laptop to an external monitor in my office successfully 3. I am able to connect other computers to this TV successfully.  So what could it be?  Any thoughts?

Hi Sneuby,
Welcome to Lenovo Community!
As per the query we understood that you are facing issue on connecting to your Television from ThinkPad T440s.
Recently have you updated the system with any of the application or with drivers from Windows update?
Check uninstalling the Graphic driver from the system.
Please let us know the findings once you have performed the above steps.
Best regards,
Hemanth Kumar
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    Hi Sneuby,
    Welcome to Lenovo Community!
    As per the query we understood that you are facing issue on connecting to your Television from ThinkPad T440s.
    Recently have you updated the system with any of the application or with drivers from Windows update?
    Check uninstalling the Graphic driver from the system.
    Please let us know the findings once you have performed the above steps.
    Best regards,
    Hemanth Kumar
    Did someone help you today? Press the star on the left to thank them with a Kudo!
    If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
    Follow @LenovoForums on Twitter!

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