First post, by BuckoA51
I'm fortunate enough to have a tri-sync CRT monitor attached to a PC I use for Groovy mame and Dosbox with CRT emudriver.
To set up Dosbox I added the following modes to my CRT emudriver setup
720x480 @ 60.000000
360x480 @ 60.000000
720x400 @ 70.000000
360x400 @ 70.000000
720x350 @ 70.000000
360x350 @ 70.000000
720x240 @ 60.000000
360x240 @ 60.000000
720x200 @ 70.000000
360x200 @ 70.000000
640x400 @ 70.000000
320x400 @ 70.000000
640x350 @ 70.000000
320x350 @ 70.000000
640x240 @ 60.000000
320x240 @ 60.000000
640x200 @ 70.000000
320x200 @ 70.000000
This seems to have had the desired effect and Dosbox is definitely switching resolutions when I play games.
However I'm a little confused as to the scaling setting in Dosbox, should I be using none or Normal2x as the scaler? Should it be Normal2x for CGA, EGA and VGA titles?
If I use none, then CGA, EGA and VGA games I've tried run in 15khz with 15khz scanlines. Sometimes that does look cool, I particularly liked the scanline effect on Jazz Jackrabbit but I don't think VGA games should be doing that. Scanlines should be thinner or not there at all depending on the monitor... my memory is fuzzy but weren't the VGA low res modes line doubled by the PC or something?
As for CGA or EGA, did they have 15khz type scanlines at lower resolutions? It's been so long I honestly can't remember.
Thanks for any advice and Happy Christmas!
play-old-pc-games.com