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Author Topic: PowerStrip and 0.147u3v014 LCD trouble  (Read 849 times)

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mikecrj

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PowerStrip and 0.147u3v014 LCD trouble
« on: February 10, 2013, 04:24:30 pm »
I'm having trouble with Mortal Kombat in GroovyMAME 0.147u3v014. In GroovyMAME, it's reporting an average speed of 114% while my LCD's OSD indicates a refresh rate of 62.1Hz. In comparison, when running GroovyMAME 0.146v013f, I get an average speed of 100% at 54.8Hz. This problem is not isolated to Mortal Kombat. It also happens in tapper, argus, twincobr, loht, rtype2, tdragon2, mpatrol, snowbros, donapachi, etc. The scrolling is fine, but the games are running too fast.

I'm running a clean install of Windows XP (32-bit), with a Sapphire Radeon HD7750 (AMD Catalyst 12.6 display driver), and a Gateway FPD2185W LCD (1680x1050) monitor. I'm guessing the issue is related to PowerStrip. I tried upgrading to AMD Catalyst 13.1, but that did not make a difference. Below is the mame.ini and Mortal Kombat log files for both versions of GroovyMAME. Perhaps something is not configured correctly in my mame.ini.

Thank you for any help or suggestions. I've really enjoyed GroovyMAME and have had no issues with v013. Hopefully I can get v014 running smoothly.

GroovyMAME 0.147u3v014 Mortal Kombat log. Ran with command line -norotate -norol -noror -notriplebuffer -syncrefresh -waitvsync -nohwstretch -nofilter -nocleanstretch -keepaspect -prescale 1:
http://pastebin.com/sEL38dgQ

GroovyMAME 0.146v013f Mortal Kombat log:
http://pastebin.com/rKPCirV7

GroovyMAME 0.147u3v014 mame.ini:
http://pastebin.com/ssECjbM8

GroovyMAME 0.146v013f  mame.ini:
http://pastebin.com/5D2Qmr4s

Calamity

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Re: PowerStrip and 0.147u3v014 LCD trouble
« Reply #1 on: February 11, 2013, 05:08:40 am »
Hi mikecrj,

Well this is interesting, thanks for posting. The problem is your video card's dotclock is fixed at 146366. My old method worked around this problem by adding lines to the back porch. The new method is based on VESA timings and the idea was to avoid the user having to enter "difficult" porch specs, but it requires a flexible enough card with all the required dotclock values available. However, I will try to integrate both methods somehow, please stay tuned, I will need you to test it.
Important note: posts reporting GM issues without a log will be IGNORED.
Steps to create a log:
 - From command line, run: groovymame.exe -v romname >romname.txt
 - Attach resulting romname.txt file to your post, instead or pasting it.

CRT Emudriver, VMMaker & Arcade OSD downloads, documentation and discussion:  Eiusdemmodi

mikecrj

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Re: PowerStrip and 0.147u3v014 LCD trouble
« Reply #2 on: February 11, 2013, 10:20:11 am »
Thank you, Calamity. I will be available for testing.