Hi, @Rick Someone
Thank you for posting in Microsoft Q&A forum.
MDT 2012/2013 defaults the screen resolution to 1024 x 768, but can be customized in CustomSettings.ini, and for the models you want to have screen resolution autodetection enabled on, simply set the screen resolution to a really low value. This will force Windows setup to autodetect the resolution.
For the details, we may refer to the article:
https://deploymentresearch.com/mastering-screen-resolution-settings-in-mdt-2012-2013-and-configmgr-2012/
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