MiSTer FPGA Forum

I'm using my Mister with my 20L5 via "direct video" and I can't get the AO486 core to display properly. I believe it's because it's trying to display 480p, but I don't understand why there's a problem because this is a multiformat monitor, and it should display fine. All the 240p cores work properly. I am using the RGB input on the monitor.

I am connected as follows:
HDMI out on Mister => HDMI to VGA adapter => Retro Access VGA to SCART Mister cable ==> SCART to 4 BNC cable into the back of the PVM.

Since this is 480p or above, should I be using something different than RGB connection? I understood RGB could carry a 480p signal.

I have the same problem with the same pvm and another 14 pvm...

I've not used direct video so I can't say for certain, but if it outputs the original signal then it would be outputting a 400p@70hz signal, which the L5 series can not display. I've had both a 14L5 and a 20L5 and can say it won't sync to old DOS video signal timings. I remember it also didn't particularly like 640x480@60Hz from a modern PC either. It would sync but the image was very dark. 720x480@60Hz worked just fine though.

SuperBabyHix wrote: ↑Tue Sep 29, 2020 3:14 pm 400p@70hz signal

This is exactly the reason it doesn't work.

As for 640x480x60 from a modern PC, you can make that work perfectly on an L5. Might have to mess with some service menu settings - probably CLP P DLY?

So then I could get around this by forcing the core into 640x480x60 by setting something up in the ini file?

Probably, but you'll probably get significant scaling artifacts and a little stutter too.