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Something like this might help Create an all-white screen in a graphics application such as AppleWorks or Photoshop, and save it as a JPEG file. Use this as the image displayed by the screen saver. Turn the display brightness down (but not off) to preserve backlight bulb life. Leave the white screen saver on for a while. or more simple, ...


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PowerPC based Macs are old, too old to run Yosemite by a good number of years so I'm going to guess that you have a MacPro and an Apple Cinema Display in which case: http://support.apple.com/en-us/ht2811 Should help. Edit: I should expand on my rather terse answer. I think that the timing of you upgrading to Yosemite is a bit of a red herring. The problem ...


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If the LCD screen is not damaged (no dead pixels) then you probably only need to replace the actual glass front touch panel, or digitizer, and do not need to change the LCD. This can pick up relatively cheaply ($90, or eBay). You just prise the front panel off, and leaving the LCD in place, replace it with a new one. Google for this video "How to: Fix a ...


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This seems clearly GPU issue. Previously all 2011 model MBPs had the same issue and same symptoms. I am a victim myself. Take it to the authorized service center immediately. If you are out of warranty then it may be expensive to replace the logic board. I have sworn that I will not buy another Apple Mwith dual graphics.


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You have experienced a graphics card failure due to poor manufacturing. Read it and weep: https://discussions.apple.com/thread/4766577?tstart=0 I just experienced the same problem. You can boot in single-user mode and remove the AMD graphics card extensions, and your computer will boot with limited usability. In order to get it repaired, I recommend a ...


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i have the same problem, i don't know how its not possible to turn off the iMac monitor while still keeping on the external display. i got both apps, shades and slider, use them together and it goes completely black, i guess this will have to do for now. i used the shades app first to lower the brightness to about 15-20 percent. then on the external ...


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Since the shift key or option key should be recognized by the system well before the Apple logo arrives, you can conclude that you have a failed keyboard. Plugging in any USB keyboard and booting in safe mode (shift) or single user mode (command s) should let you know if the keyboard has issues. Now the Apple and blue screen are good. They mean that the ...


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With the introduction of the Unibody Macbook there is a glass on the top of the LCD display, so you're able to change only the cover glass. Here you can find a detailed guide. To dismount the screen you can follow this step by step guide. Before doing the glass replacement I suggest to try this homemade fixes.



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