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Nintendo Arcade Cores not syncing on Arcade CRT after update

Posted: Thu Nov 04, 2021 10:28 am
by 80sArcadeKid
Has something changed regarding sync on some arcade and console cores?

MiSTer FPGA sync problems after latest update on:
- Nintendo PCBs
- Genisis, SNES, etc.
Neo Geo is fine, other arcade cores fine.

Video Examples
https://youtu.be/ooD-kyjyBII

Re: Nintendo Arcade Cores not syncing on Arcade CRT after update

Posted: Thu Nov 04, 2021 11:09 am
by caad
What is your vsync_adjust set to?

Re: Nintendo Arcade Cores not syncing on Arcade CRT after update

Posted: Thu Nov 04, 2021 11:27 am
by 80sArcadeKid
I'm using the default ini from the MiSTer repro with composite sync on:
composite_sync=1
vsync_adjust=0

I'm using the i/O board VGA out into a JPAC. These cores have been fine previously.

I did try vsync_adjust=1 but seem to make no difference, I could try 2 I guess?

Re: Nintendo Arcade Cores not syncing on Arcade CRT after update

Posted: Thu Nov 04, 2021 11:50 am
by 80sArcadeKid
OK.. weird as I;ve always had to use composite sync before but setting it to 0 fixed it.
composite_sync=0

Re: Nintendo Arcade Cores not syncing on Arcade CRT after update

Posted: Thu Nov 04, 2021 11:53 am
by caad
Definitely try vsync_adjust=2 anyway, as it gives you the lowest display latency.

Re: Nintendo Arcade Cores not syncing on Arcade CRT after update

Posted: Thu Nov 04, 2021 12:54 pm
by FoxbatStargazer
vsync_adjust is for the scaler, it's irrelevant if you are using direct/analog output, which is typically how people connect 15khz displays.

Re: Nintendo Arcade Cores not syncing on Arcade CRT after update

Posted: Thu Nov 04, 2021 2:07 pm
by caad
Oops. I could have sworn I saw a difference (such as it not working) when I used the wrong setting.