Software Support > GroovyMAME

Groovy Arcade Linux Live-CD, based on Arch Linux (official update)

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Calamity:
Hi MonkeyJug,

The presets actually depend on the specific GroovyMAME/Switchres version, not the live-cd release. The presets were updated to the new crt_range format, that can behave different from the old one on edge cases. This update to the crt_range format was required to fix many issues and allow new features, there's no way back I'm afraid. It should be 100% possible to achieve the same results with the new crt_range format, by properly adjusting the ranges. The problem is I don't have a D9200 here to test myself, so this can't get fixed without user's feedback. It's a good moment for that because and preparing the new GM patch.

Can you elaborate a bit the black screen issue or send me to some post where you describe it?

MonkeyJug:
hi calamity,

i will use flying shark as an example, but it is the same for alot of vertical games.

basically, before the 24th february release, playing those games on a horizontal monitor (d9200) gave excellent results.  the aspect ratio was pretty much spot on, with virtually no vertical/horizontal adjustments needed.

now, with the latest live cd (24th feb), playing flying shark results in the screen being almost square, instead of 4:3.  i don't have enough adjustments to make the picture thinner, and get it back to 4:3 aspect ratio.  the presets in previous versions (at least for the d9200) were much better.  i'm not sure what changed...

as it stands, playing loads of my old favourite vertical shooters is impossible because i can't get the aspect ratio close to 4:3...

Calamity:
Hi MonkeyJug,

By adjusting the ranges, I mean the actual crt_range lines, not the monitor. You need to redefine the edge cases. The game you say is 320 lines tall when rotated, that's a typical edge case: too tall for 15 kHz, too short for 25 kHz.


--- Quote --- the presets in previous versions (at least for the d9200) were much better.  i'm not sure what changed...
--- End quote ---

The previous presets may have worked better for the D9200, they were probably stretching the games around 320 lines tall. Now those games are probably run at 24 kHz (you can check that in your monitor's OSD if it has one).

Things you can try:

- Try the D9800 preset (don't be scared: these are defined for 15-38kHz, just like the D9200), or...

- Try this in mame.ini:

monitor custom
crt_range0 15250-16500, 40-80, 2.187, 4.688, 6.719, 0.190, 0.191, 1.018, 0, 0, 224, 288, 448, 576
crt_range1 23900-24420, 40-80, 2.910, 3.000, 4.440, 0.451, 0.164, 1.048, 0, 0, 384, 400, 0, 0
crt_range2 31000-32000, 40-80, 0.636, 3.813, 1.906, 0.318, 0.064, 1.048, 0, 0, 480, 512, 0, 0
crt_range3 37000-38000, 40-80, 1.000, 3.200, 2.200, 0.020, 0.106, 0.607, 0, 0, 512, 600, 0, 0

MonkeyJug:
i tried the d9800 preset and it is 99% perfect.  i tried about 50 games, and for some reason it also has problems with vertical games with 320 lines.

out of every game i tried, only flying shark (and twin cobra) are the ones with problems.  this time, the height is perfect, but i just need a little bit more horizontal to widen the screen out.  when i first loaded the game, it looked like it hadn't synced properly, and then i give it maximum horizontal (left/right) stretch and now the top of the screen looks like an old vhs video tape, which needs tracking applied, as it bends towards the top of the screen (just the top inch or so).  if i had a tiny bit more horizontal (left/right) adjustment, then it would solve it.  any clues how to get this?

even though my monitor is a d9200, it is effectivley a d9800 in all but name as it was produced in the last batch.

Calamity:
Ok, I suspected that. I may join all D9200, D9400 & D9800 in the same preset.

I'm interested to see which resolution is being picked for Twin Cobra. This game works at 54 Hz. The best information is in the log, it would be great to see it. At least copy here the resolution and frequencies reported by Switchres (in MAME, Tab -> Game Information). It is possible to fix the width for vertical games from the software side but first I'd need to see what it's picking.

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