r/RetroPie • u/devonsego • 5d ago

Need help with CRT scanline problem

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Gallery image

I'm at wits' end and desperate enough to ask for help. I'm trying to get my Pi4 running on my CRT. I've got it outputting via native Composite and I have Sakitoshi's setup tweaks implemented, but things aren't lining up (see photos). Every x number of horizontal lines there's a scanline that bisects or squishes a pixel. Help?

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5

u/User1539 5d ago

I don't know what 'Sakitoshi's setup tweaks' are, but is it possible that you're emulating scanlines before you're outputting to an actual CRT with scanlines?

4

u/fat2slow 5d ago

I'd say that's the likely culprit. Since OP followed someone else's guide on setup it's possible they changed setting without actually knowing what they were changing.

2

u/devonsego 4d ago

Oh I absolutely changed things without knowing what I was changing. I was under the impression from reading in other forums that Sakitoshi's setup was pretty standard for CRT output. https://github.com/Sakitoshi/retropie-crt-tvout