My mac book pro is not starting up when opening just a black screen
opened my mac book pro to use this morning and just a black screen, pushed the off button and makes noise to shut off but still no light ti indicate it's turning on
iPhone 4S
Sleep, log out, and shut down shortcuts
| Shortcut | Description |
|---|---|
| Power button |
Tap to turn on your Mac or wake your Mac from sleep. |
| Hold for 1.5 seconds while your Mac is awake to display a dialog asking if you want to restart, sleep, or shut down. If you don't want to wait 1.5 seconds, press Control–Power button. | |
Hold for 5 seconds to force your Mac to turn off. |
|
| Command–Control–Power button | Force your Mac to restart. |
| Shift–Control–Power button | Put your displays to sleep. |
| Command–Control–Power button |
Quit all apps, then restart your Mac. If any open documents have unsaved changes, you'll be asked whether you want to save them. |
Command–Option–Control–Power button |
Quit all apps, then shut down your Mac. If any open documents have unsaved changes, you'll be asked whether you want to save them. |
| Command-Shift-Q | Log out of your OS X user account. You'll be asked to confirm. |
| Command-Shift-Option-Q | Log out of your OS X user account immediately, without being asked to confirm. |