Laptops are often configured so that the screen is dimmer when running on battery than when using the power lead. Is it possible that a faulty connection with the power lead is causing the screen setting to change as it switches on to battery power?
Xiaomi Mi Mix 2 review
See mcbess's iconic style animated for Mercedes-Benz
iPhone X news: Release date, price, new features & specs
Black Friday 2017 : date, sites participants & bonnes affaires