Mac Mini won't wake from sleep

Discussion in 'Mac mini' started by boynigel, Aug 23, 2015.

  1. boynigel macrumors regular

    Joined:
    Jul 19, 2009
    #1
    all of a sudden it has been very buggy. won't wake from sleep. only fix is to shut it down and restart. couldn't log into my gmail account. it was as if when i typed my password the wrong characters were going in because i KNOW i was typing it correctly, and i was able to get in on my imac just fine. one time it wouldn't let me put it to sleep. when i went to the apple menu to try, the blue highlight kept jumping around the different drop-down selections erratically. i ran disk doctor which said everything is fine...but it's not. i'm running 10.7.5 2.3 GHz Intel Core i5 w/8 GB of ram
     
  2. boynigel thread starter macrumors regular

    Joined:
    Jul 19, 2009
    #2
    OP here. some other strange things that i forgot to mention above. for some reason every time i restart the computer there is no sound to my speakers because in system preferences it keeps defaulting back to mute. when i visit a website after a second or two, the page jumps half-way down the page. i then grab the scroll bar to scroll back to the top but then it jumps back down. it's almost as if someone has hijacked my computer and messing with me. i tried the SMC reset and that changed nothing. i guess it never hurts to zap the pram. i'll try that next but i doubt it'll change anything.
     
  3. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #3
    What keyboard and mouse are you using?
    Are they wireless?
    Try a different, wired (USB) mouse and keyboard.
    I suspect that you may have one or more sticking keys on your keyboard.

    What else do you have attached to your mini?
    Do you use any USB 3.0 devices/drives/hubs, etc? Some USB 3.0 devices can cause interference with bluetooth devices, for example.
     
  4. Partron22 macrumors 68000

    Partron22

    Joined:
    Apr 13, 2011
    Location:
    Yes
    #4
    Blue highlight in menus jumps around in response to keyboard presses.
    As DeltaMac said, try a different, wired, keyboard.
     
  5. boynigel thread starter macrumors regular

    Joined:
    Jul 19, 2009
    #5
    i'm using the wired apple keyboard that came with it, along with the same wired mouse for the last two years. all that's plugged into it is a printer and a scanner. they're off 90% of the time and they've been hooked up to the mini since day one.
     
  6. boynigel thread starter macrumors regular

    Joined:
    Jul 19, 2009
    #6
    i'll try my imac's keyboard just in case there are sticking keys.
     
  7. boynigel thread starter macrumors regular

    Joined:
    Jul 19, 2009
    #7
    props to DeltaMac. it's my keyboard. swapped it out w/my imac and all is fine. none of the keys look physically stuck so i'm guessing some dirt or a spill may be completing a contact under one of the keys
     
  8. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #8
    You can test your keyboard with the Keyboard & Character Viewer - available in your System Preferences/Language & Text pane, then click on the Input Sources tab. Check the box (Keyboard & Character Viewer)
    Then, select the Keyboard Viewer from the flag menu in your menubar. You'll see an on-screen keyboard, which will show you exactly which keys are sticking. I test a keyboard by pressing and releasing each key. You should see each respond as you do that with each key.
    I usually bang on the keys pretty hard. You can sometimes get a sticky key to release (or really stick tight :D )
    (This post is for the OP, who is using OS X Lion. Older or newer systems will have the same keyboard viewer, but will be in different pref panes.)
     

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