I unplugged and plugged in the HDMI and wiggled it up and down. Now, the problem seems to have gone away.
So, it is some kind of connection issue.
I think wiggling it up an down fixed it. Probably scraped the metal together a little bit.
I don't know if I will spray the contact cleaner on it now. I will see if the problem comes back.
Ok. I seemed to have fixed my Mister problem. I unplugged the HDMI cable while it was running and plugged it back in. I guess it reset something.
So, if you have faint lines showing up on your screen, do that.
Edit. The problem came back. I ordered some contact cleaner to spray in the HDMI port.
So, it seems like the HDMI output on the "bad" board has artifacts. I could try using the analog out.
I am wondering if scrubbing the HDMI with a toothbrush would fix the problem.
I fixed the problem. I set the vsync to low lag and set HDMI to game mode. So, it was a video setting issue.
Edit: The problem came back. I swapped out the Nano board with this extra one I got. It fixed the problem.
So, that is what I get for buying a used MiSTer. Something went wrong with the video on the board.
I changed the resolution to 1080p and it went away for a little bit.
So, it is some kind of video issue. I have tried this on a tv and a monitor and the same problem shows up.
The fact that it went away makes this seem like it is fixable.
This also showed up on the SNES core, so it is not a core problem. I did not happen when I ran an arcade game.
I will try some different roms first.
The controller from the Turbo mini actually works on the MiSTer. That was nice.
For some reason, it am seeing flickering pixel strips on Magical Chase and Keith Courage.
They run vertically across the screen. I tried switching the HDMI cable and it did not fix it. I have not noticed it on other cores. Also, the strips do not run through the menu when you bring it up.
Maybe some bad roms?
The SDRAM is usually marked on which way it should face. I was going to add a switch turn mine off.
I will be getting it in Monday. I will have to open up the case and get a good look at it.
Thanks for pointing me to the wiki.
It looks like it is fully loaded. It even has a clock.
I will have to upgrade the SDRAM to 128GB and add a 1TB SD card.
What do all the buttons on top mean? I get what Reset does, but the other two I am not certain about.