Hi, I have recently purchased Dell Inspiron 15 3515 with AMD Ryzen 5 3500u and VEGA Graphics. While I am on battery the screen dims out in the darker content and brighten up on lighter content. This gives me headache while I am using the laptop. I have updated all the drivers. I did some research and turns out it is dell's "adaptive(worst)" display feature directly turned on in the firmware and according to the answers of some people, I tried these things.

1. Disabled "Vari-Bright" in AMD Software.

2. Tried to change some power settings.

3. Tried to disable any options regarding this issue in BIOS.

Still doesn't work. Please help me.