Aran Cox wrote:
3a) Driver Options The nVidia corp. binary driver for Linux has an Overscan option called TVOverScan. My understanding is this increases the amount of overscan but cannot be used to decrease it. It also seems only work on Composite and S/Video outputs with supported cards, not every nVidia based card. It may also be possible to adjust overscan with the nvidia-settings tool included with the binary driver.
The nvidia-settings tool not only allows you to adjust overscan, but the range of overscan options is much greater than the xorg.conf setting. Changing only the xorg.conf setting I wasn't able to get any true overscan, I was only able to reduce the size of the black borders. Using the nvidia-settings tool I was able to make the output of Myth closely resemble normal TV viewing: the picture went to the edges of the screen, no black border at all.
The drawbacks of using the nvidia-settings tool to control overscan is that the settings don't always stay. Many full-screen games (not xmame, but say tuxracer) will do something that overrides the settings. As a result, you have to somehow re-apply the nvidia-settings settings. This doesn't always work well, and I haven't found a way to do it without the use of a keyboard.
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