Hi Donalddavidson1,
It sounds like you're trying to connect your iPad Pro to a display using a VGA Adapter. We're glad you've joined us in Apple Support Communities. Let's see if this helps.
It looks like you've had the chance to review About Apple Digital AV Adapters for iPhone, iPad, and iPod touch. That's a great start, but we have some additional advice for you.
Follow the steps in Connect iPad to a display with a cable. It will guide you through troubleshooting your iPad Pro connection.
If the issue remains after following those steps, let us know what steps you had a chance to try from above.
We hope that helps with your question and take care!