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I have a mid 2012 MacBook Pro 13". Whenever I use it, it runs smoothly then randomly locks up and horizontal lines appear on the screen. The lines run back and fourth and the screen shakes. It is no longer under warranty. Has anyone ever experienced this issue? I took it to the Apple Store a few weeks ago and they did not find anything wrong. What should I do?
MacBook Pro (13-inch Mid 2012), iOS 8.3
You may have to take the computer to the Apple store again.
Bring the above shown photo along with.
Have you tried resetting PRAM, SMC and starting up in Safe Mode?
Reset PRAM. http://support.apple.com/kb/PH18761
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Start up in Safe Mode. http://support.apple.com/en-us/HT1564
Best.
Almost the same issue while startup and while using Garage band or iPhoto. Went to the Apple store, there they said that it must be because something must have banged with the screen somewhere. If you get to know the solution for this then do let me know.
Purple running lines?
