ArcadeVGA + horizontal 15KHz montor + Tempest = ???

[krick]

I recently set up my cab with an ArcageVGA card.  I'm using a horizontal 15KHz arcade monitor.  I used the AVRES Utility as instructed on the Ultimarc website.  For the most part, I am happy with the resolution settings.

However, it appears that with Tempest and a few other vector games I looked at, that the resolution chosen is too high/large to fully display on my monitor and the picture ends up chopped off at the top and bottom.

Note that I've already adjusted my monitor so that other vertical games like Pac-Man display correctly though my horizontal games end up slightly squished.

Has anyone else solved this problem and gotten Tempest to display correctly with the same hardware setup?

[DaveJ-UK]

I think you need to fiddle with MAMEs settings, this is possibly what you need.

-[no]hwstretch / -[no]hws

   MAME uses the hardware stretching abilities of modern graphic cards to
   scale the game image to the requested resolution. Depending on the
   quality of your graphic card and its drivers, this may be a fractional,
   antialiased scaling (nice) or an integer, blocky scaling (not so nice).
   In any case, you can disable this stretching altogether and let MAME do
   the scaling in software, which is probably slower, though. The default
   is ON (-hwstretch). Note: Vector games may actually look better with
   "-nohws".

[wpcmame]

However, it appears that with Tempest and a few other vector games I looked at, that the resolution chosen is too high/large to fully display on my monitor and the picture ends up chopped off at the top and bottom.

Have you tried to specify the resolution directly for tempest?

Tempest is a bit special since it is a vertical vector game.

Note that I've already adjusted my monitor so that other vertical games like Pac-Man display correctly though my horizontal games end up slightly squished.

Sound contradicting. How can vertical games display correctly while horizontals do not.
I have not used ArcadeVGA myself but I assume the pclock for the resolutions are set up so that the aspect ratio is correct. You probably need to adjust your monitor. Select a 4:3 resolution with correct number of lines (e.g. 384x288) and adjust the monitor so that the picture fills the entire screen.

Has anyone else solved this problem and gotten Tempest to display correctly with the same hardware setup?

Works fine for me with resolution 768x576 but I use advancemame.