Betson 44-4070-RT - Picture is squeezed on right side

[grantspain]

no one seems the know the extended menu,and yeah i think you may be the problem

[isucamper]

Hi.  I've been reading over the last page and I'm a bit confused.

It sounds like you've been testing 3 different monitors.

The Beston:  Sounds like this has bad compression on the right side.

The Sawan pfx:  Sounds like this is also compressed but not as bad as the Beston?

The WG9800:  No compression on the side but geometery is not that great.

Am I following?

I also have a WG9800 and have been fiddiling with things to improve the geometry.  For some resolutions its pretty good, but for others (especially medium res games) it is just horrid and there's nothing I can do to improve it.  There's always this hourglass like shape to the picture I'm fighting. 

[grantspain]

thats called side pincushion

[MrMikeZH]

yes isucamper thats the situation here.
also there are atleast 2 diferent pfx monitors, the pm1755 and the kw0606.
i would like grant too see the kw0606.
i will do some videos later.

[mameCab123]

Been working on this for awhile and almost gave up, but I have found a solve for me in 15khz to get near perfect horizontal linearity. The only downside is some blank space on either side, which doesn't bother me.

I setup the monitor at 640x480p @31khz first to get the best picture. Kortek kt2914f

I found if you use Arcade OSD and turn up the horizontal front and back porches on resolutions with poor geometry it will clean it up significantly. Then just center the picture with H center.

Crt_EmuDriver > Ati X300 > Vmmaker (I just picked D9800) > Groovy Mame (for sync to refresh not resolution generation, I turned modeline off)

I know half the point of groovymame is to auto generate resolutions, but I already know most of the mame games I'm going to play and would rather tweak the resolutions in arcadeosd as this monitor can be difficult.

Example.

Ghouls'n Ghosts  384x224 had terrible horizontal linearly at first, which you can put in service mode and run cross hatch. I went into arcadeosd and set h front porch 11 / h back porch 24. Huge difference, yeah the picture doesn't fill the whole screen but the linearly is now near perfect.

This is identical for street fighter alpha 2, it also has a service mode with cross hatch.

Hope this helps anyone as trying to play scrolling games on mame 15khz on this monitor was totally unacceptable.

http://geedorah.com/eiusdemmodi/forum/viewtopic.php?id=46 has a wealth of information.
 

[DeLuSioNal29]

What OS are you using?

[mameCab123]

windows xp professional 2002 service pack 2. Cheap dell optiplex tower off craigslist p4 3ghz... then $10 ATI pci-e x300 card off ebay.

Also super excited to be running vertical games that look great on horizontal. Contra and Pac Man look really good @~20-24khz, a huge benefit of this monitor I suppose. Just setting rotation = 1 in mame.ini and working with the resolutions it chooses in arcade osd-

Reading this thread from rcadegaming, going to try using a cheap tv I just got off craigslist as well. If you search for 'yoko' he explains the vertical / horizontal stuff and how it relates.

http://forum.arcadecontrols.com/index.php/topic,121491.msg1288832.html#msg1288832

[DeLuSioNal29]

I'm now using the Win7 Beta Emudrivers.