I have been running Linux Lite for about a month and up until now, it followed the settings in the power manager.
However, today it stopped suspending when I close the lid. Instead it does nothing and you can see if you turn the laptop on its side that it doesn't even shut the screen off.
I tried the solutions
here and
here.
This did not start after an update (though I updated the system before I started troubleshooting), so it's odd. The only thing that has changed today is that I replaced the keyboard of all things though I can't see how they'd be related.
The laptop is an old Acer Aspire One D270 I'm refurbing. Any other info just ask. I'm not sure where to go next in troubleshooting?