Anybody know how to disable the overscan? My HTPC's HDMI output is getting the whole Windows taskbar chopped off.
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First set your computer to 1080P output (assuming that your TV is 1080P... set accordingly to your TV settings.) Also remove any scaling changes you made to your drivers here.
Then dive into your TV settings.
On Samsung TVs it is
Menu.. Picture... Advanced Settings... Picture Options...
Go to Size: and change it to "Screen Fit"
You can also do this easily on LG TVs. You need to find the screen size setting there again... look for where it is currently set to 16:9 and change it to "screen fit" or something like that. (Not in front of an LG right now so I can't give detailed advice. But I did it on an LG TV yesterday.)
Most modern TV's give you this adjustment to prevent overscan being done at all. (Heck your BlueRay player will overscan on some TVs too!)
It's entirely possible for anyone to have both problems than for it to just be the tv. As I recall I believe I had both problems the first time I was getting my computer hooked up to my tv. And I should note the scaling setting for my tv is a lot easier to change than finding the setting in Catalyst :/. It's entirely possible that video drivers are automatically set for overscan to compensate for tvs coming from the factory with overscan too. Makes no sense to me, but then again neither does TBS stretching out older 4:3 shows like Home Improvement on its HD feed.