OK, but what explains the lights not being on when I load in at a gate? I sit there, it's dark, no lights pop on.
Doesn't happen here, as you can see in my video, which shows DL switch on when parked.
My lighting is 100% default, 1.0 for every value. I use no shaders, I use no post-processing, what you see in that video is 100% out of the box default.
Yet, DL in my video, which is surely default ( clean P3D V5 install, no other add-ons other than FSDT sceneries ), is considerably brighter than yours so, something must be different in your setup.