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iMac screen going to sleep

My imac's screen keeps going to sleep randomly... sometime frequently other times with extended intervals...

I have checked forums and re set PRAM and SMC also re set the energy saver preferences, turned off hot corner assigned to screen sleep, installed caffeine (non sleep program) but no luck yet... It still keeps happening... Help!

iMac, OS X Mountain Lion (10.8.2), Mid 2011

Posted on Feb 14, 2013 3:15 PM

Reply
30 replies

Feb 21, 2013 5:01 PM in response to Oonsty

I don't know if this means anything but there seems to be a lot of warnings...

22/02/13 1:45:57.722 PM com.apple.SecurityServer[15]: Session 100014 created

22/02/13 1:45:59.318 PM com.apple.dock.extra[183]: [Warning] Caught exception: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[2] name: NSInvalidArgumentException reason: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[2] userInfo: (null) in function: -[IMChat _postNotification:userInfo:]

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 1 IMFoundation 0x00007fff8f12ebe2 IMLogBacktraceToDepth + 69

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 2 IMCore 0x00007fff8e4e3281 IMPersonStatusComparator + 213984

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 3 IMCore 0x00007fff8e4feecc IMFilterSiblingsForCapability + 24989

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 4 CoreFoundation 0x00007fff98aa963c __invoking___ + 140

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 5 CoreFoundation 0x00007fff98aa94d7 -[NSInvocation invoke] + 263

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 6 CoreFoundation 0x00007fff98aa96a9 -[NSInvocation invokeWithTarget:] + 57

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 7 IMCore 0x00007fff8e4c3d7b IMPersonStatusComparator + 85722

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 8 CoreFoundation 0x00007fff98aa4737 ___forwarding___ + 775

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 9 CoreFoundation 0x00007fff98aa43b8 _CF_forwarding_prep_0 + 232

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 10 CoreFoundation 0x00007fff98aa963c __invoking___ + 140

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 11 CoreFoundation 0x00007fff98aa94d7 -[NSInvocation invoke] + 263

22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 12 CoreFoundation 0x00007fff98aa96a9 -[NSInvocation invokeWithTarget:] + 57

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 13 IMFoundation 0x00007fff8f12b5d5 im_local_object_peer_event_handler + 7128

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 14 IMFoundation 0x00007fff8f12b6b3 im_local_object_peer_event_handler + 7350

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 15 IMFoundation 0x00007fff8f12b767 im_local_object_peer_event_handler + 7530

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 16 Foundation 0x00007fff8c1f3677 __NSThreadPerformPerform + 225

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 17 CoreFoundation 0x00007fff98a35101 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 18 CoreFoundation 0x00007fff98a34aed __CFRunLoopDoSources0 + 445

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 19 CoreFoundation 0x00007fff98a57dc5 __CFRunLoopRun + 789

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 20 CoreFoundation 0x00007fff98a576b2 CFRunLoopRunSpecific + 290

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 21 HIToolbox 0x00007fff95b780a4 RunCurrentEventLoopInMode + 209

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 22 HIToolbox 0x00007fff95b77e42 ReceiveNextEventCommon + 356

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 23 HIToolbox 0x00007fff95b77cd3 BlockUntilNextEventMatchingListInMode + 62

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 24 AppKit 0x00007fff94520613 _DPSNextEvent + 685

22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 25 AppKit 0x00007fff9451fed2 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128

22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] 26 AppKit 0x00007fff94517283 -[NSApplication run] + 517

22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] 27 AppKit 0x00007fff944bbcb6 NSApplicationMain + 869

22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] 28 XPCService 0x00007fff934e8d15 xpc_service_main + 433

22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] 29 com.apple.dock.extra 0x000000010e0fa744 com.apple.dock.extra + 5956

22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] Exception: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[2]

22/02/13 1:45:59.322 PM com.apple.dock.extra[183]: [Warning] Symbols: (

0 CoreFoundation 0x00007fff98ab60a6 __exceptionPreprocess + 198

1 libobjc.A.dylib 0x00007fff912263f0 objc_exception_throw + 43

2 CoreFoundation 0x00007fff98a7a777 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 119

3 CoreFoundation 0x00007fff98aa7f99 +[NSDictionary dictionaryWithObjects:forKeys:count:] + 57

4 iChatDockTile 0x000000010f6d54da iChatDockTile + 38106

5 iChatDockTile 0x000000010f6d5a2a iChatDockTile + 39466

6 CoreFoundation 0x00007fff98a6847a _CFXNotificationPost + 2554

7 Foundation 0x00007fff8c1a9846 -[NSNotificationCenter postNotificationName:object:userInfo:] + 64

8 IMFoundation 0x00007fff8f1376ee IMCleanupPhoneNumber + 1099

9 IMFoundation 0x00007fff8f137691 IMCleanupPhoneNumber + 1006

10 IMCore 0x00007fff8e4e3196 IMPersonStatusComparator + 213749

11 IMCore 0x00007fff8e4feecc IMFilterSiblingsForCapability + 24989

12 CoreFoundation 0x00007fff98aa963c __invoking___ + 140

13 CoreFoundation 0x00007fff98aa94d7 -[NSInvocation invoke] + 263

14 CoreFoundation 0x00007fff98aa96a9 -[NSInvocation invokeWithTarget:] + 57

15 IMCore 0x00007fff8e4c3d7b IMPersonStatusComparator + 85722

16 CoreFoundation 0x00007fff98aa4737 ___forwarding___ + 775

17 CoreFoundation 0x00007fff98aa43b8 _CF_forwarding_prep_0 + 232

18 CoreFoundation 0x00007fff98aa963c __invoking___ + 140

19 CoreFoundation 0x00007fff98aa94d7 -[NSInvocation invoke] + 263

20 CoreFoundation 0x00007fff98aa96a9 -[NSInvocation invokeWithTarget:] + 57

21 IMFoundation 0x00007fff8f12b5d5 im_local_object_peer_event_handler + 7128

22 IMFoundation 0x00007fff8f12b6b3 im_local_object_peer_event_handler + 7350

23 IMFoundation 0x00007fff8f12b767 im_local_object_peer_event_handler + 7530

24 Foundation 0x00007fff8c1f3677 __NSThreadPerformPerform + 225

25 CoreFoundation 0x00007fff98a35101 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17

26 CoreFoundation 0x00007fff98a34aed __CFRunLoopDoSources0 + 445

27 CoreFoundation 0x00007fff98a57dc5 __CFRunLoopRun + 789

28 CoreFoundation 0x00007fff98a576b2 CFRunLoopRunSpecific + 290

29 HIToolbox 0x00007fff95b780a4 RunCurrentEventLoopInMode + 209

30 HIToolbox 0x00007fff95b77e42 ReceiveNextEventCommon + 356

31 HIToolbox 0x00007fff95b77cd3 BlockUntilNextEventMatchingListInMode + 62

32 AppKit 0x00007fff94520613 _DPSNextEvent + 685

33 AppKit 0x00007fff9451fed2 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128

34 AppKit 0x00007fff94517283 -[NSApplication run] + 517

35 AppKit 0x00007fff944bbcb6 NSApplicationMain + 869

36 XPCService 0x00007fff934e8d15 xpc_service_main + 433

37 com.apple.dock.extra 0x000000010e0fa744 com.apple.dock.extra + 5956

)

22/02/13 1:50:19.792 PM WindowServer[75]: Created shield window 0xe1 for display 0x042801c0

22/02/13 1:50:19.792 PM WindowServer[75]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)

22/02/13 1:50:19.803 PM WindowServer[75]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)

22/02/13 1:50:23.000 PM kernel[0]: 5731.480585: ar9300WowEnable: Skip PCIE WA programming

iMac screen going to sleep

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