Almost half a year ago problem occurred - one day, after I opened lid - screen gone all glitchy and blurry (this is unique glitch - I did not find it on google images on any other mac), and stays like this until I reboot (even apple on the lid stays active, macbook won't go to sleep after this glitch). After that, I got "sleep wake failure" report and... Black screen. For about month or something like this. I use external monitors after this glitch everytime. The thing is. I do not believe that this is hardware problem, I see this as software problem. Because if I won't close the lid for a sec and disable sleep state forever - screen will work like a charm. Something, some program, daemon, code, I don't know, something gives this weird bug, that I for so long assumed was hardware problem. I wan't to see logs and discover, which daemon/program causes this sleep wake and screen glitch, so I can delete it, and everything will be the same again. Glitch started on Yosemite. Or I don't know. Maybe JRM causes this and it's new version causes this. Where can I see global logs etc, or maybe suggestions, how can I catch this program, that breaks my screen?