I have the Framework 16 with the GPU unit, Windows 11, latest BIOS and Driver Pack. The display brightness setting doesn’t work at all. I’ve used the buttons on the keyboard and the setting screen in Windows. The level adapts on the blue bar, but the actual screen always stays at maximum brightness. I’ve also tried enabling Energy saver in Windows. That also doesn’t have effect on the display brightness.
In Device Manager, the display shows as Framework NE160QDM-NZ6, driver date 01/01/2024, version 1.0.0.0. Location: on AMD Radeon™ 780M