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Ghosting/Lag with IPAC Controls
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DashRendar:
Cool- I'll try setting that way when I get home.  8)

I know there's a limit of consecutive keypresses going through USB, so maybe with the way I have it mapped it's exceeding that.
DashRendar:
No luck using only the Up/Down/Left/Right settings in MAME.

I have a USB to PS/2 adapter, going to try connecting it that way.  I doubt USB would be the issue, but you never know.
AndyWarne:

This does not sound like an I-PAC issue, although that doesnt help much... you can make sure there are no key issues by running the keyboard test program from www.passmark.com

There are no simultaneously-pressed key issues with USB on the I-PAC so its not that.

The mapping you suggested is completely wacky, and will confuse Mame. Even though you mention you have backed these out, I would try deleting (or renaming) default.cfg just in case.

Andy
DashRendar:
Renamed default.cfg, and reloaded MAME.

That did make a bit of an improvement, but it's still a problem.

I'm using Gauntlet II to test it.  After redoing the default.cfg file, I could control Player 4 a little longer.  There was a slight delay with my movement/button presses and what was showing on the screen, but it was better.

But after about 30 seconds, my character started moving around by himself and firing nonstop.  Controls went haywire again.  :(

Has anyone else run into a problem like this?  I have seen posts that describe these symptoms on the Ultimarc forums, but there were never any fixes posted.
Epyx:
Are any of your mapped keys windows keys? IE Alt, tab, ctrl etc?  Those can cause issues like you describe.
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