VGA Scaling/sizing options?

[Angelworks]

So I have this ancient Compaq Prolinea 5133 that I fixed up and play MS-Dos games on. It works quite well with the ossc, but in 320×200 it’s zoomed in too much so that the left/right and top/bottom parts of the screen are chopped off. Firmware .81 it got better – but the top and bottom are still cut off. I can at least read the left/right parts of the screen (where the ms-dos command line starts).

At 640×480, 800×600 etc it looks perfect – perfect 4:3.

Is there any way to adjust this? Or is this mainly intended for progressive vga output like the dreamcast or xbox?

[nmalinoski]

Having all edges of the image lopped off sounds like an overscan issue with your display, but it also sounds weird that it wouldn’t happen with 640×480 or 800×600. Is the OSSC actually outputting 320×200 or is it linedoubling and putting it in a 640×480 frame? Are you using the new 640×400 preset?

[Angelworks]

Yeah it looks like an overscan problem, but keep in mind all the PC games I’ve ever played usually have a border around them to handle that – so I dunno.

The 640×400 preset seems to do nothing on AV3 :(.

[nmalinoski]

What are you using for a display? (Make, model)

[Angelworks]

Its a 55″ TCL 55C807 – but I don’t think that is the issue – the output looks similar on the Startech USB-3 capture device, but I have to admit I have no clue at this point.

The startech device thinks the output is 720×480 though. Now that I think about it – I could put a sample clip onto youtube of the issue I’m seeing if that helps.

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