MacBook Pro Sleep/Wake backlight issue
Today while using my late 2012 Macbook 15 inch MacBook Pro (Retina) i noticed the battery was at 2%, so i plugged in the charger and closed the lid.
When I opened the lid a few minutes later to use it again the display was black but the computer woke up from sleep. The only way I could see the display is by shining a light over the screen. I tried turning the brightness up and down and up again but it made no difference.
I restarted the computer and it is working fine again. I think it had done this problem for me once before.
It is running Mountain Lion 10.8.4.
Is there a problem with it or is it a glitch / bug ? Maybe because I let the battery go so low ?
MacBook Pro with Retina display, OS X Mountain Lion (10.8.4)