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Black bar at bottom with ArcadeVGA and WG9200
clnilsen:
I am slowly making progress on my Cab project, and got my new Avga card connected to a W-G 9200 monitor. One problem I am running into is that with may Roms, I loose about 2-3 inchs of display at the bottom when running many roms. Pacman and D-K seem to run fine, but most everything else seems to have this display issue. I am running mame 127 from the command line w/ the parameters provided from Ultimarc. If i don't use the parameters, I don't seem to have this problem. Any ideas on things to check to trouble shoot this, or had a simiary issue?
Thanks!
Chuck
RayB:
This is an old known issue people have to learn about... check the Wiki on resolutions and the sacrifices you have to make. ie:
You must choose between two situations that each have their pros and cons:
1. Set MAME to stretch and squash the picture to fit for every game. Using this mode means you are not getting the original game's real resolution (which kind of defeats the point of using an arcade monitor).
or
2. Set MAME to run games at "true resolution" which means you then have to tweak your monitor vertical size to a setting that lets you adequately see all games, but you will get black bars on some games, and the screen drawing off outside the frame for others. Different games used different resolutions and were meant for one machine with the monitor set correctly. So that's the compromise. A vertical game like PacMan, displayed on a horizontal monitor will have some top and bottom cut off, while a horizontal game like Shinobi will have black bars top and bottom.
ahofle:
Well with a multisync like the D9200, he should actually be able to fit those games.
Can you give us more information? What game specifically? What resolution are you running the game at? Have you tried adjusting the vertical/horizontal sizing and position using the on screen display?
Other than a few unusual vertical games, you should be able to run just about everything with no stretching on that monitor.
scotthh:
I was losing 2" of screen with the PC vs. a jamma board on a WG7191. I found this thread which talks about adjusting a pot on the monitor board (separate from the remote board) if the frequency of the input has changed. Annoyingly, WG's site doesn't have a manual for your monitor. The manual for the 9400 states that there are pots on the PCB in addition to the OSD controls. I don't know if this will solve your problem. But it solved JoeB's and mine.
retrometro:
which game and at what resolution / refresh are you running? I have a WG 9400 and could try to duplicate it to see about the stretch issue.