Main > Monitor/Video Forum
CRT via S-Video Question
zauxier:
Hello,
I am using a CRT TV hooked up to my PC via S-video as my Mame monitor. It's running in 800x600 and is working out great for what I need except that it seems like the image is squished horizontally. it's almost as if the image is being pushed in about 3/4 inch on each side. Thus making what should look like a square, look like a bit of a rectangle with longer sides and a shorter top and bottom.
Attached is an image which shows the area I'm talking about on the screen. The yellow area is what I'm referring to that I'm trying to remedy. I think the fix would be just to "stretch" the image back to it's full size, but for the life of me I can't figure out how to do that? I'm running Windows XP, if that helps. Thank you!!!
lilshawn:
you know a TV SD signal is like 480 lines right? you are trying to jam 800 lines into it.
you need to lower your resolution. like a lot.
Zebra:
Are you using the svideo out directly from a GPU or the svideo out port on an old laptop, or are you using an RGB to svideo transcoder like a Jrok?
If it's the former, they usually limit you to 480i for svideo out and changing the res in windows usually has no effect on the svideo out res. Are you certain you are outputting 600x800 to your tv?
Imo, you are better off downloading the free CRT EMU drivers with groovy mame and then investing a transcoder like a Jrok. Outputting games in their native res and refresh rates solves all kinds of display issues on SD CRT tv's, especially as they usually lack convenient image size and position adjustments like you have on monitors. I used to use a Jrok to get my mame PC on a CRT which only had Svideo (before I got my arcade monitors). They did a nice job:
The main reason to still be using a CRT is to get an authentic arcade-like image. Playing 240p games in 800x600 doesn't get you that.
BTW, if you are playing vertical games on a horizontal monitor, it's normal to have borders at the side of the screen.
Mr. Peabody:
--- Quote from: Zebra on October 24, 2019, 02:29:43 pm ---Playing 240p games in 800x600 doesn't get you that.
--- End quote ---
It does for vertical games with scanlines.png , and 640x480 for horizontal games. Recent MAME looks great if set at D3D without bi-linear filtering (this outputs like DirectDraw). The rest I will not discourage, though it would be nice to know the model and specs of the TV....
zauxier:
I am using s-video out from the gpu directly to the CRT. The ONLY option I'm able to select for the display in Windows is the 800x600 resolution, but beyond that I'm not sure how I can confirm this is the actual resolution that's being exported?
I'm open to all options as long ass this veteran pc can run it, and it doesn't permanently mess up the crt.