Chosen Solution

I’ve been having intermittent image persistence on my monitor for a while now as well as the entire image ‘falling down’ for a second. The latter is most apparent when the apple logo/progress bar on a black screen appears during startup. Interestingly the problem has also been associated with a very harsh sound coming from the left speaker. Today the monitor problem became worse with the entire screen flickering and washing out with a blue field of vertical lines. At the same time an external monitor works fine and the sound from headphones connected via the 9 mm jack is fine. Could this be liquid damage? I’ve been wiping the keyboard with ethanol lately.

your lcd could be damaged from extended use at full brightness all the time especially on the charger