So you’ve sprung for one of those fancy new ATI GPUs and downloaded the newest drivers but you’ve got black bars all around the screen? I thought so, it’s a common problem recently and with ATI having some of the best GPUs on the market currently for HTPC playback with their onboard HDMI sound output and sheer video processor power it comes up quite often. The issue arises from the GPU’s scaling of the image versus any native scaling being done by the monitor resulting in what’s called overscan (or underscan). While Nvidia’s Forceware driver set makes it relatively easy for the end user to adjust this setting from the Nvidia Control Panel, ATI have done an excellent job of burying them as deeply as possible in the Catalyst Control Center.
To find ATI’s Overscan/Underscan and GPU scaling options follow these steps:
Open ATI Control Center and bring down the Graphics menu and select the Desktops and Displays option.
Next select the display which isn’t showing the proper scaling near the bottom of the screen in the small toolbar of displays. Right-click the display and select the Configure… option.
From this screen you can enable or disable the built-in GPU scaling functions of the card as well as choose from a few modes which might better suit your display.
To adjust Overscan/Underscan, select the Scaling Options tab and select the checkbox to enable the feature. Then adjust the setting using the slider.
That’s all there is to it! Something that probably should’ve been quite a bit easier to find to begin with. If you’ve got any more tips or information on these or other ATI driver settings be sure to drop them in the comments below!