Due to a security update by Apple with Digital Rights Management (DRM) technology, which is designed to protect hardware or copyrighted works, MacBooks running OS 11, Big Sur, are experiencing video connection issues.
This may include a green screen when connected via HDMI to control panels in classrooms. OIT recommends that you do not upgrade your Mac to OS 11 at this time. OIT is working on a solution.
If you are in the classroom and need immediate assistance, you can contact the OIT HelpDesk at 865-974-9110. If you are outside the classroom and would like to report a problem, contact the OIT HelpDesk online or by phone at 865-974-9900.