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Author Topic: Older Veritcal Games Not Displaying Properly  (Read 1500 times)

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dheck

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Older Veritcal Games Not Displaying Properly
« on: March 24, 2016, 07:25:15 pm »
I am getting rolling images and sound issues while trying to play older vertical games like pacman and donkey kong. 

GroovyMame .171 and CRTEMUdriver on Windows 7 64 bit.

Any help would be appreciated!

Log attached.
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Calamity

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Re: Older Veritcal Games Not Displaying Properly
« Reply #1 on: March 24, 2016, 07:45:50 pm »
That's because the low refresh rate due to high vertical resolution (288p). Try either one of the following solutions:

- Use the arcade_15 preset
- Adjust the v-hold potentiometer.

The sound issue can be fixed by either:

- Enabling -multithreading in mame.ini
- Forcing -syncrefresh (sound pitch will be lower)
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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 of pasting it.

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

dheck

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Re: Older Veritcal Games Not Displaying Properly
« Reply #2 on: March 24, 2016, 08:28:47 pm »
I edited the mame.ini file.  I changed monitor from custom to arcade_15 and I am still getting the rolling images.

Enabling hyperthreading seems to have fixed the sound issue.

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dheck

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Re: Older Veritcal Games Not Displaying Properly
« Reply #3 on: March 24, 2016, 08:50:56 pm »
Also I have a 27" Sony CRT TV.  I do not believe they had analog pots for V and H adjustment? 
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