I've been fighting this since I got the unit as well. I live in the country and it's very distracting. I usually turn the screen off in the status bar, but if you get a call it brings it back to life.
I did the dudu7 factory setting thing and turned the screen to 1 minimum brightness, that helped a little.
I just recently discovered a setting in the android system accessibility settings that allows for a verrrry dark screen using something similar to the "extreme dark mode" but goes darker. Accessibilty->Display->Extra dim. Make sure your screen brightness is turned up a bit before you play with this. If I hadn't done it at night I'm not sure I would have been able to use the stereo until night.
The nice thing about doing it this way is that there is an option for a shortcut that you can put anywhere on the screen and toggle it without needing to dig into the dudu settings.
It still reduces the contrast, but it's easy to toggle on and off when you want it very dark.
I would love to see a screen time out feature on the deck. They disabled it in the android settings, so that isn't a system option.
Best workaround I've found for now.
