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late 2012 Mac mini screen redraw problem

406 Views 1 Reply Latest reply: Dec 18, 2012 4:40 PM by BDAqua RSS
huwphillips Calculating status...
Currently Being Moderated
Dec 18, 2012 2:53 PM

I have just purchased a new MacMini, basic model, and am experiencing screen redraw trouble. I run the MM headless, it's used as a file server and CrashPlan backup host for friends and family, administered/ controlled by using Apple Remote Desktop running on my MBP. For some reason the screen does not display correctly - I have to run the cursor over the screen, a bit like Etch-a sketch, to get the display to refresh.

 

Any ideas what may be causing the problem? I use ARD at work to administer the office servers and have not had this problem before, I also use ARD at home to control other computers.

Mac mini, OS X Mountain Lion (10.8.2), late 2012, running ML server
  • BDAqua Level 10 Level 10 (114,715 points)
    Currently Being Moderated
    Dec 18, 2012 4:40 PM (in response to huwphillips)

    Hello,

     

    Resolution

    Move the mouse or trackpad cursor over the center area of the login window so you can see the user icons. Click on the icon of the user that you would like to login as, type in the user's password, and press Return.

    If the login window is configured to show only the name and password fields, type in the user's name and password into the fields, and press Return (even if you cannot see the rest of the login window).

    Additional Information

    This issue will not occur if the display is not sleeping when the account is logged out. Use the steps below to confirm that the account is not configured to log out automatically while the display is sleeping:

        1.    Open System Preferences > Security & Privacy > General.  Click the padlock to unlock the preference pane and enter your admin password. Click the Advanced button at the bottom, then see if the option "Log out after N minutes of inactivity" (where N is the number of minutes) is enabled.

        2.    Open System Preferences > Energy Saver and configure Display Sleep to occur after the account is logged out, by dragging the slider to a number of minutes that is greater than N was set to in the previous step.

    Important: If automatic log out is not needed, disable "Log out after Nminutes of inactivity" in System Preferences > Security & Privacy > General. This will also prevent the issue.

     

    http://support.apple.com/kb/TS4135?viewlocale=en_US

     

    http://km.support.apple.com/library/APPLE/APPLECARE_ALLGEOS/TS4135/TS4135_01-osx _1072-login_window-001-en.png

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