Should I use a custom resolution with a TV? (eg. 640x432?)

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Lilwolf:
What I found (not all that much testing)..

most TV-out cards will scale to one resolution. You should try and set it to exactly that much... otherwise your scaling in software... then scaling in hardware.

Mame does a GREAT job of HWScaling on most cards. So setting the real resolution and hwstretching is pretty good. Create an INI with forcing close as possible to native resolution and use hwstretching.

..then..

set mame to switch to closest resolution and see how it does. This means that your ATI card will do all the stretching.

You will probably see a difference. If the resolution works with the card it should be the best (since both ways your video card is stretching and you know you have the right resolution).

I believe all video cards handle 640x480 btw... Its XP that doesn't show support (but can be enabled... heck, you can have your desktop at 320x240 if you want... but don't expect to be able to hit accept on the Display Properties window to get it back to a normal resolution.

sofakng:
Ok, if I understand correctly then I should try to use 640x480 as much as possible since 800x600 is actually downscaled to ???x480.

However, when I use 640x480 or 800x600, it seems as though about 3/4 of an inch are cut off from the bottom of my screen. Is this just a driver problem of some sort? I'm using an ATI Radeon 7500 (AGP) in case you're wondering... (w/latest Catalyst drivers).

jimboc:
I have a Radeon 7500 w/s-video out, with a good quality 20" s-video TV and have gone NUTS trying to get the display to my overall liking. I've finally found settings that have worked for me, and I found them to look quite good in composite as well as s-video.

Just FYI, I prefer jaggy crispness to blurry anti-aliasing.

MAME display tweaks:
I definitely like 800x600 for the best "all-around" resolution.. I find the downsampling/stretch pattern to be better than 640x480 or other weird custom resolutions.

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