iMac with black screen, backlight on, no activity
132356
Macbook Pro 2014 doesn't recognize internal display
72585
MacBook Pro early 2015 not turning on and not charging
72814
Mac turns off randomly and has lines on screen
71425
How to light up back-lit keyboard?
141521
How to enable display on Dell monitor connected to MacBook Pro when not charging?
73265
Dell Chromebook 11 - unable to set backlight and /sys/class/backlight/ folder is empty
24342
MacBook shows flashing question mark in a folder when battery is at > 70%
124014
Black screen after installation of Ubuntu 18.04
114511
Ubuntu 18.04 Black Screen after Blanking Screen
2984
Ubuntu 13.10 Macbook Air Mavericks Parallels 9 Black Screen
15139
Blank Macbook pro with no operating system. Trying to fix
139550
Alternative activity monitors for OS X?
39600
HP PSC 1410 all scanner's images are black
52287
Mac Mini: No sound except for startup chime
96352
Black screen after wakeup
46157
Mid 2012 MBP shuts down claiming no power with charge at 30% or 40% or more
24007
How to troubleshoot a computer not booting up when powered on?