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iMac OS X Ver 10.7.3
21.5 Inch, Mid 2011
2.5 FHz intel Core 5
12 GB 1333 MHz DDR3
When the computer in woken from sleep mode we see two login options (bineg used by two users).
But when we try to login, the screen just behaves as a sluggish rotating cube.
Nothing works, we just have to hard boot at this time.
iMac, Mac OS X (10.7.3)
What do you mean "Nothing works...?" We have no idea what you have tried, if you can advise what troubleshooting you have attempted that might save all of us some time.
at this point, the machine just freezes, I can not do anything but reach for the power button to get back control. I am a novice at Mac's so no idea on what troulehooting I should attempt.
Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of this exercise is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login. Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. The instructions provided by Apple are as follows:
Note: If FileVault is enabled under Mac OS X 10.7 or later, you can’t boot in safe mode.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem(s)?
After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.
OK,
Please restart in Safe Mode, this will clear some caches. It is possible one or more caches has become corrupt. After that it would be a good idea to do a SMC reset, in fact it doesn't hurt to do this 2x. Instructions for the SMC reset are:
SMC RESET
When trying to log back from sleep mode, the screen behaves as a rotating cube, with the mouse pointer in the top left corner. Hangs.
