Ubuntu Budgie 20.04 screen dims suddenly, then doesn't brighten


I upgraded from Ubuntu Budgie 18 LTS to Ubuntu Budgie 20.04 LTS. Now my screen suddenly dims without anyway to get it to brighten. I am using a Mac Mini 2012 with a HP 2311f monitor.

Thank you for your help in advance.

Look under Settings > Power

You may be able to tweak something there to stop this issue.