My Mac has a dark curtain that slowly goes down the screen and then asks for a shut down of the computer. What is happening? What do I do?
I am having a problem with my Mac Pro spontaniously having a darkened curtain that slowly goes from top to bottom of the screen and then in a message box asks me to shut the computer down. There is no warning. I cannot go on with my work as it seems to freeze whatever I am doing. I do no lose the work I am doing, usually, but it is hard and annoying while working. Any helps? I have taken off most apps and fonts that I have installed secondarily. What can cause this and what do I do?
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the page that opens.
Select the most recent panic log under System Diagnostic Reports. Post the contents — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.
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< Personal Information Edited By Host >•Technical Note TN2063: Understanding and Debugging Kernel Panics
https://developer.apple.com/library/mac/technotes/tn2063/_index.html
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http://www.thexlab.com/faqs/kernelpanics.html
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