Okay my Macbook Pro computer screen suddenly went black but it came back on once I clicked a key what does this mean?
I need some assistance I just bout a refurbished Macbook Pro 17 inch and i have had it for roughly 2 weeks. My computer screen suddenly went black and comes back on after I press a key. What is the matter I need help cause im starting to get upset
Hi,
is it possible that while working in photoshop, you accidentally hit this key-command?
Control+shift+eject
This instantly darkens your screen to black. When you hit any key, the screen comes back, the behaviour you describe.
(It's a handy thing when your boss comes in and you don't want him to see your "confidential information".)
Maybe there a key command in photoshop you used and you missed a key?
(Or something was pressing on the right top corner of your keyboard (the eject key) en you pressed ctrl-shift to execute some other keycommand)
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Normally the question mark on the gray screen means it can't find the operating system. Have you tried booting up from the installation DVD? Do that, and when you come to the screen where it wants to begin a system installation you'll notice in the menubar where it say's utilites. Click on that and choose disk utility. from there choose your disk and try to verify and repair the disk. If you can you may want to also try and new install of the system. I don't know how much critical data you have, but reinstalling is an option. did you purcahse you from an Apple store? If you did you may want them to look at it. Hope this helps.
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Sleep function OS X Mavericks:
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Reinstall OS X without erasing the drive
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Download and install Mac OS X 10.6.8 Update Combo v1.1.
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Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
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Reinstall Mountain Lion or Mavericks
OS X Mavericks- Reinstall OS X
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OS X Lion- Reinstall Mac OS X
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penny41,
Thanks, glad it helped you to check your battery status.
Something else to look at would be the cycle count, as you mention that your computer is "ancient". If you have a high number of cycles, it may also be a sign that the battery is tired and possibly nearing it's life span, and may possibly need to be replaced soon. If you see that again you may try a SMC reset to see if that helps, but if it continues you may need a new battery at some point. The battery icon will usually say needs service, or something to that effect. For the later MBP's Apple claims a life span of up to 1000 cycles, of this also will be dependent on who the battery is used, on the older ones I'm not quite sure what the claims were, and I don't know how old "ancient" in your case actually means.
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If a reset doesn't work, try and force iPad into Recovery Mode:
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