MiSTer FPGA Forum

Hi

I'm trying to figure out if it's possible to get the best of both worlds and have RTG showing on my PC CRT 31khz (connected via a HDMI to VGA adapter) and the standard PAL / NTSC on my PVM 15Khz (connected via IO board).

Currently I have a good 800x600 image on the PC CRT via these settings:

[MINIMIG]
forced_scandoubler=1
direct_video=0
vga_scaler=1
video_mode=5

But the 15khz output is off on the PC CRT (31khz) and not appearing at all on the PVM (15khz).

Thanks
John

What happens if you just run on the PC CRT through VGA port instead of via HDMI?
It should run seamlessly.
I have not setup RTG yet on MiSTer, but on MiST I have had it running off PC CRT fine.

RTG is working with a fixed video mode on the PC CRT.

But the PAL output doesn’t look great due to the scaling to 800x600. Same with 640 x 480.

Also tried to get something similar working, but no luck. Thought I should be able to get 15khz rgb straight from the chips out through the analogue io board only and RTG out over HDMI only but no luck. I believe this setup would work on a real amiga, but can't figure out how to get it working on the mister.

Bumping this thread in case anyone has managed to figure it out.

I've got a fantastic crisp 31khz PC CRT Workbench image at 1024x768 (via a HDMI to VGA adapter) but the output via the IO board with a Amiga PAL video signal is coming through at 31khz on my BVM (15khz monitor).

Is there any way to prevent the IO board VGA out being scan doubled to 31khz? Here are the MiSTer ini settings:

[MINIMIG]
vga_scaler=0
video_mode_ntsc=1
video_mode_pal=1
vscale_mode=0
vsync_adjust=2

Okay! These settings work assuming Workbench is set to 1024x768@60 via Prefs (other WB modes will work just need to match video_mode=1):

[minimig]
direct_video=0
vga_scaler=0
vscale_mode=0
forced_scandoubler=0
video_mode=1
vsync_adjust=1

Yep the key is, you don't need forced_scandoubler when using the scaler with your VGA monitor. It's only for bumping up the original 15khz signal up to 31khz, but scaling to 768p and higher makes that completely unneeded.