Question about Apple MacBookPro 15-inch 2.16GHz 120GB Laptop (Refurbished) (B002FAM2W2) Mac Notebook
My macbook pro screen will go black and then the computer will restart. A screen pops up saying "your computer has restarted for some unknown reason" then asks if I want to reopen all of the programs I had open. No information gets lost, but this is a newly refurbished computer that I bought from Gainsaver and should be working properly
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Posted on Jan 02, 2017
SOURCE: MacBook Screen Problem
If I understand you correctly from start up the screen is dim but does brighten up after time? But now after start up you are getting a flicker how ever a restart solves this.
On the dimming issue. Check your energy saving settings and brightness key is working OK.
The flickering is a bit of a concern.
Just a couple of questions.
Are there any dead spots on the screen? Areas where there are no pixels.
When you tilt the screen forward and backward, does this effect the brightness or flickering?
Posted on Sep 04, 2008
while starting, hit cmd v. this will put it into verbose mode and show the background processes and where it stops, there will be your problem. Also try inserting an OS disk and hitting c during startup chime and use the disk utility to fix the permissions.
Posted on Jun 04, 2009
Hello, this certainly has to deal with your RAM memory. have you installed RAM recently? if not, you can try memtest to test your memory, or take our 1 memory after another, Hope this helps
Posted on Jun 11, 2009
It is likely that some program has grabbed (allocated) a good part of the color table. This used to be a problem with 256-color color tables--be sure you are set to millions of colors--Windows could be changing this. Try starting up with the shift key down (safe boot) and if this works, you will need to turn off some program that are being started up automatically. You may need to go to Terminal and look for the resource file ".bashrc" or ".cshrc" (pronounced sea-shark), which could be starting other programs, although I didn't find one on my machine just now. Use the "ls -a" command to list all including the hidden ones beginning with period. I use non-hidden files when I invoke certain Unix programs, just use ". program-name" in the bash shell, with no quotes, of course.
Posted on Aug 17, 2009
I am going to have you take your Mac into Safe Mode to see if we can't remove a possible folder(s) that may be affecting your Mac's start up function.
Try these steps:
-SAFE BOOT MODE-
• Reboot your Mac
• Upon restarting your Mac, press the Shift key.
• Hold the Shift key until you see a White Screen with Gray Apple icon and eventually a spinning gear.
• When you see the Spinning gear, release the Shift key.
• Allow the Powerbook G4 to continue booting up. Also this may take a little while
(NOTE: this may take anywhere from 5 to 15 minutes to load to the Safe mode screen depending on the performance of your Mac, but if it exceeds this time, shutdown your Powerbook G4 and try just once more. It may have just frozen up the first time around for you.)
• You are going to enter the Safe Mode (which looks like your main desktop environment - the only difference is certain start up items are disabled.)
• Once within the Desktop in Safe Mode
• From the Finder Menu, click Go> Go to Folder
• Type in this line: /System/Library/StartupItems
• This path, is going to take you to the System Library folder which has all of your Mac OS X Startupitems.
• Remove all of those folders to the Trash.
*Reboot your Mac normally and see if you can access your normal User desktop environment.
At times this procedure does help for gray screen issues so give this a try and let me know if this helps.
Posted on Jan 26, 2010
Testimonial: "you are my savior! the computer turned on but once i got i on all the desktop icons where working. should i still empty the trash and restart?"
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