LCD not working unless connected AFTER power-up

userHead DavidEP 2019-02-24 01:06:44 6668 Views3 Replies
I bought a 7" LCD for the Latte Panda and if I connect it to the LP before power up it displays only random vertical lines.

I assumed it was faulty, so a second one arrived (so now I have 2) and both do the same thing.

If I disconnect the ribbon cable, power up the LP and THEN connect the LCD they both work fine.

What could the problem be and how can I fix it?