Raspberry Pi 3B+ with Noobs installation Then Emulation Station
There is an official Rasberry pi touch screen attached by the ribon cable and 4 jumper wires to the Gpio. I used different power and ground lines than the documentation stated because the power and ground right next to each other are running my cooling fan. I cannot get the touch screen to work either (not sure if related). It displays just fine, but no touch response. If by some chance this is related and there is a solution for that too--great. If not I do not need the touch.
I have updated and upgraded software. I read another thread that indicated the Noobs install is to blame sdtv=0 has been un-commented in my config.txt Hdmi_ignore_hotplug=1 has been added to my config.txt hdmi_force_hotplug=1 has been commented out.
Power Supply is 2.5amp, but I am gettting intermittent under voltage warnings. 3.0 amp power supply arrives tomorrow. Could this be causing the issue?
Cable (3.5 to RCA) has been tested on a known good Rasberry Pi 3 B, and I get picture out from that unit just fine and in craptastic composite style--but that old feel is half the fun. (It does not have the touch screen attached to it when I test for composite out)
I get a black screen from the composite with some walking down of lighter areas? Basically black but just a little bit of lighter shading in the blackness that is just enough for me to no believe its my imagination.
Anything else I should try? I have actually purchased another 3B+ that I will change out with my current one tomorrow. I actually built this pi into something so that is a pain, but at this point I can't imagine anything but hardware failure.... except user error. What am I missing?
Power supply does not make a difference (fixed under voltage issue but nothing else); as removing yellow and green GPIO cables did not; as replacing Pi Board with a new one did not. I'm at a loss here. Next step is to do a fresh install--will keep updated.