Software Support > GroovyMAME

vector game issues

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Calamity:
Many vector games work at odd refresh rates like 40 and such. Those will be calculated with the lowest frequency admitted by the range you use, say 50 Hz. If the mode is rolling vertically then it's very likely this is the issue. Try raising the lower vertical frequency limit in the monitor_specs line. That will pick a lower resolution and a higher refresh rate at once, that should be inside your monitor specs.

Forcing 640x480 interlaced shouldn't be a problem but for some reason it's causing that issue in your system.

krick:

--- Quote from: ahofle on February 22, 2012, 07:39:58 pm ---I'm not sure, but I would guess it's trying 800x600i.  It's just rolling vertically whatever it is.

--- End quote ---

Have you tried fiddling with your monitor controls (likely vertical hold) to see if you could stop the rolling?

ahofle:

--- Quote from: krick on February 23, 2012, 10:24:11 pm ---
--- Quote from: ahofle on February 22, 2012, 07:39:58 pm ---I'm not sure, but I would guess it's trying 800x600i.  It's just rolling vertically whatever it is.

--- End quote ---

Have you tried fiddling with your monitor controls (likely vertical hold) to see if you could stop the rolling?

--- End quote ---

I haven't, because I've finally gotten it to the point where every other resolution is perfect so I'm a little afraid to mess with the vertical hold for fear of causing some other resolution to roll.  I will give that a shot though.

The weird thing is when I manually pick 640x480, it doesn't appear that anything is wrong except for the blank screen.  As I mentioned, when I press 'tab' I can see the MAME menus perfectly.  Just no game video.

krick:
Are you picking 640x480 interlaced?

Incidentally, my 15KHz arcade monitor (Hantarex Polo 25) can actually do 800x600 interlaced.

I've only tried it with my ArcadeVGA 3000 though.  I need to try it with a normal ATI card + Calamity's hacked drivers.

ahofle:
Yeah 640x480 interlaced.  Well I got the 'auto' resolution working, but the screen is blank also just like it is when I force 640x480.  Again, I can hear the game, but no video.  I can see the MAME menus perfectly fine though.  Any ideas?

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