I'm having some interesting artifacts on a 15khz arcade CRT in my Namco Exceleena 2 with original Toshiba tube but replaced (not by me) Wei-ya Tri-sync chassis. Now I haven't pulled the tube and chassis out (yet) but there is a D-Sub connector. Video from the JAMMA edge does not seem to work?
Anyway.... I wanted to see if my MiSTer could output the require D-sub signal to the chassis/tube.
I have the HDMI to VGA adapter and the only way I can get an OSSC or CRT to pick up a 15Khz signal is with:
composite_sync=0
direct_video=1
If I have composite_sync=1 I get no signal on the OSSC or the CRT.
Some cores just freak out the chassis completely and I have to quickly turn the thing off. Others run fine but a wired RGB colour blocks down the side (bottom on horizonal setup)
Here is a video of the issues, any insight into what is going on? I assume some cores just output a signal natively in direct video that the chassis does not like (DoDonPachi)
https://youtu.be/AbHW7xwm1hI
BTW: Mistercade incoming when they get made!
Direct Video to Toshiba Arcade CRT test (RGBHV via D-Sub)
-
- Posts: 48
- Joined: Thu Feb 11, 2021 10:59 pm
- Has thanked: 27 times
- Been thanked: 30 times
-
- Posts: 48
- Joined: Thu Feb 11, 2021 10:59 pm
- Has thanked: 27 times
- Been thanked: 30 times
Re: Direct Video to Toshiba Arcade CRT test (RGBHV via D-Sub)
Are these bars part of the way the DE10 outputs direct video over the HDMI to VGA?
Because it's on almost every core.
Because it's on almost every core.
-
- Core Developer
- Posts: 206
- Joined: Sun May 24, 2020 8:48 pm
- Has thanked: 18 times
- Been thanked: 196 times
Re: Direct Video to Toshiba Arcade CRT test (RGBHV via D-Sub)
I wouldn't worry about the DoDonpachi core. It has known analog video issues.
Those colored bars don't come from the DE10 Nano so it's likely to come from the HDMI-VGA adapter assuming you have connected other equipment to the monitor and haven't seen that issue before.
That you don't get a signal with composite_sync=1 is a bad sign assuming you have set the OSSC to RGBs instead of RGBHV. You might want to buy a better HDMI-VGA DAC. The Ugreen one should work well if they didn't change the internals by now.
Those colored bars don't come from the DE10 Nano so it's likely to come from the HDMI-VGA adapter assuming you have connected other equipment to the monitor and haven't seen that issue before.
That you don't get a signal with composite_sync=1 is a bad sign assuming you have set the OSSC to RGBs instead of RGBHV. You might want to buy a better HDMI-VGA DAC. The Ugreen one should work well if they didn't change the internals by now.