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black screen after login, Mountain Lion on Macbook Retina

I've been using Mountain Lion for a while, and regularly I get a black screen, right after the login screen (after entering the password).

Often I have to reboot several times until it boots properly.


It is not clear when or why it happens: it could be some 3rd party code (gfxCardStatus, CUDA 5.0 sdk, steer mouse, Microsoft Intellimouse driver?) or something else.


Does anyone else have a similar issue?

Posted on Jul 26, 2012 9:59 PM

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330 replies

Sep 18, 2012 7:09 AM in response to Explorateur

i too have this issue, when cold-booting it comes up with a black screen just after completing the logon process. the keys stay lit, screen stays lit even when lid closed it wont sleep. computer unresponsive unless power button held down.


its on a macbook retina which is 3 days old, only installed software like adobe lightroom, one or two printer drivers and pages, thats about it.


fix it apple! 20 pages of posts i think this should be known to you by now.

Sep 18, 2012 12:39 PM in response to erwincoumans

Stayed up for a while last night investigating this same issue, and I have it as well.


Just spoke to Apple Support about this issue. They confirmed that you can get this black screen freeze on the rMBP if you use Scaled Resolutions WITH the login screen. They are aware of it and a patch should be in the works. Meantime, workaround is to either use auto-login or "best for retina display" resolutions. You only get the problem with both settings combined.


Hope for a fix soon!

Sep 19, 2012 7:17 AM in response to erwincoumans

0def seems like gpu/intel gfx problem(hopefullt not hardware related.) since disabling gpu switcherooo its not rebooted for 24 hrs (using adobe products adn chrome) which is good ..but it still has gfx glitches on wakeup from sleep for example as im typing this now i cant see the text im typing so excuse thetypos it deosnt refresh.. so whilst its stable for now its even less useble in this state.. i havent had the blackout screeen on login (yet) this laptop was bought not 3 weeks ago...unacceptable crapple

Sep 19, 2012 11:08 AM in response to BlueGreen22

http://www.bgr.com/2012/09/19/apple-releases-os-x-10-8-2-mountain-lion-update-he res-the-full-change-log/


General fixes

The OS X Mountain Lion v10.8.2 update also includes general operating system fixes that improve the stability, compatibility and security of your Mac, including the following fixes:

  • Adds an option to discard the changes in the original document when choosing Save As
  • Unsent drafts are now opened automatically when launching Mail
  • Receive Twitter notifications for mentions and replies from anyone
  • URLs are shortened when sending tweets from Notification Center
  • Notifications are disabled when AirPlay Mirroring is being used
  • Adds SSL support for Google searches from the Smart Search Field in Safari
  • Adds a new preference to have Safari launch with previously open webpages
  • Resolves an issue that may cause the “Enable Autodiscover” checkbox to always remain checked
  • Enables access to the Mac App Store when Parental Controls are enabled
  • Support for @icloud.com email addresses
  • Resolves a video issue with some VGA projectors when connected to certain Mac notebooks
  • Addresses an issue that may prevent Active Directory accounts from being locked out
  • Resolves an issue that may cause the policy banner to re-appear prior to logging in
  • Improvements to SMB
  • Addresses an issue with NIS users when auto-login is enabled
  • Addresses an issue in which the Keychain may not be accessible
  • Ability to pre-authenticate a FileVault protected system
  • Addresses an issue that may cause Xsan to not automatically start after migrating from Mac OS X Snow Leopard


I do not see anything about a fix for random freezing with login enabled and scaled resolution!!!!

black screen after login, Mountain Lion on Macbook Retina

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