12characters wrote: ↑Sat Nov 09, 2024 9:20 pmIt is the same on regular DE-10 Nano, it has been there for years and it is not a bug. Horizontal scanlines are generated by a vertical filter.
You're absolutely right - it turned out to be a problem of the capture card I was using, it was removing scanlines...
Using the MiSTer on a regular display worked fine.