Software Support > GroovyMAME

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

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torm3nt8r:
hi ves,
thanks for the help,
i'm using a blast city (nanao ms-2930 with 15khz)
settings used from monitor presets in this forum
(but under windows i tested with arcadeosd - my monitor sync from 15250-16300, 48-65)
vga - testet 3 cards under linux
ArcadeVGA3, HD4670 and HD 4350 (all 3 works fine with groovy arcade linux)
resolution switching runs perfect (also vertical games with 288 lines runs on horizontal)
but while testing the games - all run smooth without tearing - after 2 or 3 minutes there are hiccups for 1 or 2 secondes and then goes to normal (it's hard to describe - but very often when the hiccups begins, also sound is broken - not always - later then hiccups begin and sound goes crazy and i must quit the game)

greets
torm3nt8r

Calamity:

--- Quote from: torm3nt8r on August 14, 2012, 03:56:34 am ---minor vsync problems in all games (every 2 or 3 minutes)

--- End quote ---

This is not due to GM patches but the wiimote daemons eating all CPU cycles, I'm 99% sure of this as I had also the same issue here until I killed those daemons and everything got smooth again. The interesting thing about Linux is that even with those processes abusing CPU you only get occasional hiccups. I know Ves is targeting this problem.

The problem with sound getting corrupt is due to the patch I made for OS independent soundsync. The problem, as far as I understand, is that during emulation of some games, the speed percentage may drop during an instant, and if it's below 40%, that is translated to the sound buffer, corrupting it. This also happens when you pause a game. In order to fix this, I need to set up my system to be able to compile and test Linux binaries, that will help me trace the problem. By now, it might help reducing audio latency to the minimum through mame.ini audio options.

androtaz08:
Maybe a dumb question but after messing with groovy arcade on an olm laptop I finally got it working and setup with my snes roms. how do I enable the video out on my laptop using archlinux? 

Calamity:
Hi guys,

So after 4 days struggling with the code I think I found out the issue that made the sound get corrupted in SDL after we applied the new soundsync patch, specially when a game is resumed after pause. It seems it's a bug in the SDL sound code of MAME. Fortunately I've created a diff that seems to fix it for me.

Please Ves and Ansa and others try this patch out and see if it fixes the issue for you too. If that's the case I'll submit the patch to the mamedevs.

Ansa89:
Wow! Thanks a lot!
Unfortunately I'm on holiday right now, but I will try the patch ASAP :) .

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