I actually just bumped another thread which perfectly describes the wobble and the guy manages to video it too.
0.82a: OSSC wobbles the image on my PSIO-modded PSX on certain games
The game in this instance was “Bob the Builder” a kids game that I had to hand. As per the other thread, switching source and back fixes the wobble.
I tried crash 2 last night and it went directly to 49.76hz and didn’t exhibit the wobble
I’m having this same issue on 0.85a firmware.
No PSIO in my case, just loading games from disk. Some games sync fine and show 49.76hz, others show 49.64 and are wobbly until you switch inputs back and forth.
Any updates on a fix?
Thanks for the help thus far. I’ll get a better cable ordered up and see how it goes with the Megadrive.
I’ve finally dug the PS1 out and got it hooked up. This ones using a decent cable from retrogamingcables.
This one doesnt have the sync issues, at least with the game i tried today. However with the PS1, everything on screen sort of jiggles around. The whole frame seems to constantly jump left and right a pixel or two, leaving everything a bit blurry and horrible.
Any ideas with that?
Again, swap the OSSC out for the crappy ebay converter and the problem goes away.
I jumpered the CSync pin to Composite pin inside the megadrive to fix that issue, otherwise no picture at all.
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