Can't adjust screen brightness
- System: Win 10 Pro
- Battery or AC:
- Model: Vivobook 14 D413IA
- Frequency of occurrence: 100%
- Reset OS:
- Screenshot or video:
Since recently I cannot adjust the brightness of the built-in screen anymore. I'm not sure exactly what caused it, but it occurred short after I installed a USB docking station with the Displaylink chipset. Despite removing and uninstalling the docking station, the problem remains.
First the brightness was extremely low and the build-in screen was almost impossible to use. After changing the driver for the internal graphics card from the AMD Radeon to Microsoft Basic Display Adapter, the brightness went up to a usable level (perhaps to max), but I still can't adjust the brightness with F4/F5 keys as I could before.
Any ideas how to get brightness adjustment working again?