Hey #Linux folks using laptops. I have installed #debian on an Apple MacBook circa 2015. When this thing ran MacOS, I could close the lid with a full battery and it would stay suspended for days at a time. Now that I'm running Linux on it, it runs the battery down in hours (less than 24) when I suspend.

What's the trick? I'm using KDE Plasma, if that matters.

Please don't give any suggestions that:

  • Suggest a different Linux distro. I'm not interested.
  • Suggest not using KDE. That's not the question.
  • Recommend something you've never tried on Debian/Ubuntu or one of those variants.