How to adjust HDMI overscan without catalyst control center? 2011

Hi C,

See if the TV has overscan settings or zoom.

http://hd.engadget.com/2010/05/27/hd-101-overscan-and-why-all-tvs-do-it/

In a perfect world broadcasters would mind their signal and ensure every pixel was worth watching, then TV manufacturers wouldn't feel the need for overscan -- or at least we hope. In the meantime we're just happy that most TVs have a way to turn it off. When an image is displayed properly, it's sometimes referred as 1:1 pixel mapping. This simply means that every pixel in the signal is displayed by a single pixel on the display. Of course each manufacture has its own name for this mode; like Samsung who sometimes calls it Screen Fit, and Pioneer called it Dot by Dot. No matter what it's called, it's rarely on by default -- even when watching 1080p24 from Blu-ray which never has garbage on the edges! -- so you'll have to find the button on the remote called something like format or P.size, depending on the brand. Your best bet is to read the manual -- shocker.

In response to your OP:

If your TV is showing an image smaller than its display area, then the image being sent to it is UNDERscanned (and as you said "-AMD cards send underscanned signal through an HDMI output by default.").

In either case, whether it's overscanned or underscanned, if it's a third-party video converter, it's the responsibility of that party to make the hardware compatible with the OS (in this case Mac OS X). The card is obviously not 100% compatible with Mac OS X.

I cannot think of a reason not to adjust the image on the TV (that's why the TV has these options). Still, if you'd rather watch an HD underscanned image, I guess that's up to you.

To install catlyst control center you should download the complete ccc package and not the web installer.

The complete package sizes about 70MB. And the package can install. It won't update the display driver but will install the control center.