I am having the same issue, mid-2011 imac 27". Would like to hear something intelligent Apple on this topic fairly soon. My monitor shut down 17 times while typing this message. I'll lose products that are truly great like Dreamweaver, but if you can't do your work what's the point ? It won't be difficult to move everything to Linux if this persists. I run Ubuntu virtually as my web server as a result. Tim Cook's mangle of ML (including FTP service removal) is beginning to test my patience. On further experimentation I've found the monitor can be turned back on by typing ctrl-shfit-eject (which is supposed to turn the screen off) and then pressing eject (or randomly spacebar). This allowed me to close out importand stuff I was doing like dreamweaver with 10 unsaved php pages open before rebooting the system. However, if you have another Mac you can screen share the iMac that is turning off even when the console is black. I have yet to locate an entry in the systems log which correlates with the screen cutoff. Important: Some private information, such as your name, may appear in the log. Please do not indiscriminately dump thousands of lines from the log into this discussion. In most cases, a few dozen lines are more than enough. When posting a log extract, be selective. Paste into a reply to this message ( command-V). Select any messages timestamped from then until the end of the episode, or until they start to repeat. Scroll back in the log to the time you noted above. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. Make sure the title of the Console window is All Messages. Click Utilities, then Console in the icon grid. The application is in the folder that opens. ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. Select it in the results (it should be at the top.) ☞ Enter the first few letters of its name into a Spotlight search. Launch the Console application in any of the following ways: If you have more than one user account, these instructions must be carried out as an administrator.
The next time you have the problem, note the exact time: hour, minute, second.
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