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Sync problem (rolling picture) using direct_video mode with my CRT Trinitron
Posted: Sun May 01, 2022 10:15 am
by AmintaMister
Hi all!
Usually I use my MiSTer on my Trinitron consumer TV with analog board output but I've bought this Hdmi -> Vga DAC (
https://ultimatemister.com/product/dire ... i-vga-dac/) to try direct video.
So I've set direct_video=1 and composite_sync=1 on my mister.ini, but I've got a vertical rolling picture...
Why?
Re: Sync problem (rolling picture) using direct_video mode with my CRT Trinitron
Posted: Sun May 01, 2022 11:33 am
by akeley
Try composite_sync=0. Usually it should be "1" but in some cases "0" works, depending on the cable.
If that doesn't work, try with a clean mister.ini. These two variables are the only ones needed for DV, so maybe you have some old settings that interfere.
Re: Sync problem (rolling picture) using direct_video mode with my CRT Trinitron
Posted: Sun May 01, 2022 3:29 pm
by FoxbatStargazer
It's not clear what kind of input you are using on the TV. If you are using a component break-out adapter, the SoG switch you normally use to add the crucial sync-on-green will not apply to direct video. You will need to create a Sync on Green circuit, there are resources on this forum I can't find right now that detail how to do it. Or else get a RGB to Component transcoder. (In theory this is higher quality since ypbpr=1 degrades color bit depth slightly.)
Re: Sync problem (rolling picture) using direct_video mode with my CRT Trinitron
Posted: Sun May 01, 2022 4:52 pm
by rickdangerous
AmintaMister wrote: ↑Sun May 01, 2022 10:15 am
Hi all!
Usually I use my MiSTer on my Trinitron consumer TV with analog board output but I've bought this Hdmi -> Vga DAC (
https://ultimatemister.com/product/dire ... i-vga-dac/) to try direct video.
So I've set direct_video=1 and composite_sync=1 on my mister.ini, but I've got a vertical rolling picture...
Why?
Hello Aminta check PM.