NOTE: One known issue to this solution (and maybe others) is that when the screen goes to sleep/black it no longer wakes up, therefore needing a forced reboot. Now there are several solutions on the web but this is the only one that worked for me running macOS High Sierra (10.13.6+) and what was worst for me is that the MacBook Pro was stuck in looping reboot.
If you are suffering from the infamous blue lines on the black screen on startup or random reboots then you maybe suffering from an AMD graphics card hardware issue with your later 2011 Macbook Pro laptop.
