Chosen Solution
i have a green background color on my screen
osca osca that is a bad screen. Check the vertical lines on the left side as well as horizontal lines on top and multiple other issues. Check all of the flat ribbon cables. Make sure there is no corrosion or tears in those. Reevaluate after that. If there is no improvement, I would replace the main board just for verification purpose. Ultimately, it looks like a bad screen.
