Software Support > GroovyMAME
ati hd 4350 wont sync with arcade monitor please help?
Calamity:
--- Quote from: krick on June 14, 2012, 12:25:30 am ---
--- Quote from: c0dehunter on May 26, 2012, 02:57:40 am ---Hi Calamity,
I have a MSI HD 4350, and I wanted to know if that is the same card that you have (Asus) and the one recommended by SailorSat (at http://community.arcadeinfo.de/), stating "First Radeon to support real 320x240!"
--- End quote ---
What's the benefit of having 320x240 support. Do any arcade games/consoles even use that resolution?
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Honestly I never understood what Sailorsat meant by "real support for 320x240" there. I *think* she refers to the HD 4350 not requiring the 321x trick in order to avoid doublescan for this mode. In my experience this card it's not different to the others in that regard, I think it could do with some specific driver version that didn't have the doublescan issue.
ATI drivers are hardcoded to doublescan any video mode which horizontal resolution is 320 or 400. This is a total annoyance, as it additionally blocks the doublescan flag to be processed when you actually want a doublescanned modeline. The trick used by the ArcadeVGA and Soft-15Khz is to label those resolutions as 321 and 401 instead of 320 and 400, so the driver doesn't trigger the doublescan flag.
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