So today I connected my 13" Macbook Pro to my TV for the first time. Now after disconnecting it from the TV the backlighting stopped working. When I pressed the increase brightness button for the keyboard the brightness scale pops up but it has a circle with a line through it, telling me it's not working. I have no idea why this happened or how to fix this. UPDATE: Apparently it only works in very low light conditions. This is strange because I could of swore I used to be able to adjust the keyboard brightness in this same lighting.