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Sudden sleep for mid-2012 Macbook Air

8060 Views 36 Replies Latest reply: Sep 8, 2013 11:38 AM by sfrohman RSS
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tomfrenock Level 1 Level 1 (10 points)
Currently Being Moderated
Jul 19, 2012 8:59 PM

I have a new mid-2012 MB Air that works perfectly, but for no reason will just go black. In the middle of working on that machine, it goes to sleep with a black screen. It can be awakened normally, and things work for a while. I thought that it would be something with the power management, on battery or not, or hot corners. I changed all of those things, but the problem persists. Any ideas out there?

MacBook Air, Mac OS X (10.7.4), Mid-2012
  • sberman Level 7 Level 7 (23,705 points)
    Currently Being Moderated
    Jul 19, 2012 9:15 PM (in response to tomfrenock)

    Try resetting the System Management Console.  See http://support.apple.com/kb/HT3964

  • Jon P D Level 4 Level 4 (1,460 points)
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    Jul 27, 2012 6:59 AM (in response to tomfrenock)

    Do you have an App that puts the display to sleep when you press certain keys or make a cartain gesture on the trackpad?

     

    Sorry if this is a daft question however I used to have this and I was always accidentally putting the display to sleep

  • svedish Level 1 Level 1 (0 points)
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    Aug 17, 2012 3:49 PM (in response to tomfrenock)

    ****! I experienced the same problem tonight while I was at my new MacBook Air and feared for the worst. Then I realised the computer was just going to sleep. So I've just done the Firmware update. I hope this will solve it, but from what you're writing, I suspect this will not make the issue go away. Anyway, strange thing, since this issue appeared all of a sudden tonight after owning this MacBook Air for well over a month. The only thing I've noticed in the past days has been the brightness of the screen randomly going up and down and quite noticeably. And I have to add that tonight I have not installed anything new (and haven't for a long time). Was just downloading emails and browsing the internet. Bah!

  • svedish Level 1 Level 1 (0 points)
    Currently Being Moderated
    Aug 18, 2012 11:43 AM (in response to tomfrenock)

    They have to take your word for it. If the problem is intermittent and it doesn't present itself in front of the technician, or it's impossible to reproduce, they will need to even replace the machine for you. It's in your rights to get it sorted. At least when it's not your fault. Just go for it and please post the results. I'm away from the UK until mid September and can't do much about it. By the way, the problem with the sudden sleep (and the brightness one) have not come back so far from the Firmware update. But it's been just one day. Let's see how it goes.

  • johnfromipswich Calculating status...
    Currently Being Moderated
    Aug 22, 2012 5:15 AM (in response to tomfrenock)

    Same issues here on my MBA, it's random. In the console logs I see this

     

    Aug 22 08:05:40 Johns-MacBook-Air.local WindowServer[76]: CGXSetWindowBackgroundBlurRadius: Invalid window 0xffffffff

    Aug 22 08:05:40 Johns-MacBook-Air.local loginwindow[52]: find_shared_window: WID -1

    Aug 22 08:05:40 Johns-MacBook-Air.local loginwindow[52]: CGSGetWindowTags: Invalid window 0xffffffff

    Aug 22 08:05:40 Johns-MacBook-Air.local loginwindow[52]: find_shared_window: WID -1

    Aug 22 08:05:40 Johns-MacBook-Air.local loginwindow[52]: CGSSetWindowTags: Invalid window 0xffffffff

    Aug 22 08:05:40 Johns-MacBook-Air.local WindowServer[76]: Created shield window 0x70a for display 0x04273c80

    Aug 22 08:05:40 Johns-MacBook-Air.local WindowServer[76]: device_generate_desktop_screenshot: authw 0x7f90fb2812e0(2000), shield 0x7f90fb223280(2001)

    Aug 22 08:05:40 Johns-MacBook-Air.local WindowServer[76]: device_generate_lock_screen_screenshot: authw 0x7f90fb2812e0(2000), shield 0x7f90fb223280(2001)

    Aug 22 08:05:42 Johns-MacBook-Air kernel[0]: AirPort_Brcm43xx::powerChange: System Sleep

    Aug 22 08:05:44 Johns-MacBook-Air kernel[0]: en0: BSSID changed to 00:15:ff:11:d0:87

    Aug 22 08:05:44 Johns-MacBook-Air kernel[0]: wlEvent: en0 en0 Link DOWN virtIf = 0

    Aug 22 08:05:44 Johns-MacBook-Air kernel[0]: AirPort: Link Down on en0. Reason 8 (Disassociated because station leaving).

    Aug 22 08:05:44 Johns-MacBook-Air kernel[0]: en0::IO80211Interface::postMessage bssid changed

    Aug 22 08:05:44 Johns-MacBook-Air kernel[0]: IOThunderboltSwitch(0x0)::listenerCallbackStatic - Thunderbolt HPD packet for route = 0x0 port = 11 unplug = 0

    Aug 22 08:05:44 Johns-MacBook-Air kernel[0]: IOThunderboltSwitch(0x0)::listenerCallbackStatic - Thunderbolt HPD packet for route = 0x0 port = 12 unplug = 0

    Aug 22 08:05:44 Johns-MacBook-Air kernel[0]: Wake reason: EC.LidOpen (User)

  • Sereia_do_mar Calculating status...
    Currently Being Moderated
    Sep 23, 2012 9:36 AM (in response to tomfrenock)

    I've noticed a similar issue with my new MBA . It's only 8 days old and it has happened 4 times alerady...I don't know exactly if the issue is that my laptop goes to sleep or whether it is the display that just goes black...What I've noticed so far is that the display goes black and it stays like that for about 30 sec until it reacts again and the display is shown back to normal. Did you figure out how to fix this? any progress? or tips on what my next step should be? Thanks so much in advance!

  • johnfromipswich Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 23, 2012 7:35 PM (in response to Sereia_do_mar)

    I found the culprit.

     

    I have a magnet in my laptop bag and it was causing my Air to sleep when it lined up with the sensor in the base.

     

    I feel kinda dumb about it, but very happy to have it solved!!

  • sberman Level 7 Level 7 (23,705 points)
    Currently Being Moderated
    Sep 23, 2012 7:44 PM (in response to tomfrenock)

    That's an attractive solution :-)

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