ASRock B360M-HDV
Intel Core i3-9100F
16 GB DDR4 RAM
AMD Radeon HD 7570
Wells Gardner K7000 (as far as I can tell)
J-Pac
GA 2020.2
It's been a week or so since I set things up, so my memory is probaby off. But on first boot, I selected 15khz, got into the setup. It did the autodetect, found the display (DVI > VGA > JPAC > Monitor. Configured the monitor to Wells Gardner K7000, horizontal, 4:3.
I tried the dotclock settings (both manually editing the mame.ini and using the option in gasetup) but no luck. The screen goes completely black, like it loses power. I just tap ESC until I hear the AttractMode music, then hit ESC again, press the down arrow and then Enter. That gets me to gasetup, which activates the monitor and then I relaunch AttractMode.
I will try installing from scratch tomorrow. The cab is at work, kind of a 'employer sponsored' pet-project. We had a Galaga Arcade1Up cab that we gave away at the company xmas party. It was set up in front of my office door and was pretty popular. So I convinced my boss we needed a full size cab in the office. We found someone selling a Marvel vs Capcom cab on craigslist and bought it. The cab itself is kinda beat, but after some TLC, should look pretty good. I got it working with Retro-Pie + a Rpi 3+ but wanted something more powerful and reliable.
If you guys have any other ideas, I'd be glad to try them. I do appreciate the work being put into this project and am fully aware it's a work in progress. I've had 2020.1 running on my arcade1up cab at home (LCD) and it's been rock solid... except for the black-screen issue. The joysticks/buttons will not wake it up. A keyboard press does. So I tell my kids to just tap the Select button until it launches a game and then the screen appears and they can then decide to play or exit and pick another game. The JPAC shows up as a keyboard, so no issues with waking on the full size cab here at the office. Half tempted to just use an iPac2 in the arcade 1up, but at this point, I'm done putting more money into it... until I'm not. lol