Software Support > GroovyMAME
Strange issue with GroovyMame v.146
Calamity:
--- Quote from: mamenewb100 on July 08, 2012, 12:21:18 pm ---Also I'd like to add that it always says "SwitchRes: Failed opening DefaultVideo registry" in command line. I'm assuming that means it can't find a perfect match and doesn't fit the profile of standard AVGA resolutions. I can hear the monitor changing on some games, others are silent.
--- End quote ---
Well that's normal, GroovyMAME attempts to read Windows XP style registry and it fails, this should be fixed at some point.
mamenewb100:
Hmm I wonder if changing the setting from CGA to VGA in mame.ini would make a difference. I doubt it.
I read from some people that Groovymame could convert a res like 320x240 and double scan it to 640x480 keeping it pixel perfect minus the scanlines. Maybe I misunderstood :-\
Or the video card does that automatically.
Calamity:
--- Quote from: mamenewb100 on July 08, 2012, 12:34:12 pm ---Hmm I wonder if changing the setting from CGA to VGA in mame.ini would make a difference. I doubt it.
I read from some people that Groovymame could convert a res like 320x240 and double scan it to 640x480 keeping it pixel perfect minus the scanlines. Maybe I misunderstood :-\
Or the video card does that automatically.
--- End quote ---
Yes, GroovyMAME can scale the resolutions automatically but you need to define your monitor accurately so GM knows what to do.
However this can only be done properly by defining a custom mode table with VMMaker, that already contains the scaled resolutions.
Obviously you can't do this with the AVGA, so the results will be unpredictable.
For your specific case, I can't see the advantage in using a AVGA, as you're not using a 15 kHz monitor. I'd rather go with a normal ATI card.
mamenewb100:
I was really confused when I originally got my monitor and AVGA. Didn't understand the difference between 15 and 31 Khz. All I heard was people talking about how you would really benefit from AVGA and an arcade monitor.
I was cool with having 31 Khz with higher res games without the thick scanlines but then didn't know the AVGA was basically made for 15 Khz lol. What I don't get is the games look pretty good as if they are pixel perfect although some seem a tad blurry. Maybe If is saw a 15 Khz display or a pixel doubled 31 Khz, I would notice an even sharper image.
Anyway I very much appreciate you pointing me in the right direction and investing your time helping with this.
mamenewb100:
OK so I'm considering getting another video card at some point. This is all I have to add:
Why would it be impossible to create a windows modeline that you could point AVGA to? Is the firmware completely locked, so there is no way to add different resolutions or modelines? No possible way to use WinModelines, VMMaker, or Powerstrip?
If I can't do it with this card. Which one do you know will work well with Win 7 and Groovy?
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