East Texas Commercial GMC Trucks and Business Fleet Vans and Vehicles. Hall Buick GMC is the Premier Business Elite Dealer in East Texas, serving Athens, Longview and Henderson from our Tyler Buick and GMC dealership.
The monitor driver queries the WDDM driver for the Brightness Query Interface and device driver interface (DDI) support during initialization. 1.If the WDDM driver supports the necessary DDI, then the monitor driver uses the driver interface to control the panel brightness levels.
Rating Newest Oldest. Best Answer: Usually the laptop screen's contrast and brightness are adjusted by using the second function of certain keys. On my laptop, I hold down the Fn (Function) button (on the bottom row of keys) and also tap either the brightness or contrast button.