Skip navigation

Macbook very slow after screen saver has been on

1212 Views 8 Replies Latest reply: Jun 2, 2013 7:51 PM by Union RSS
Apple_Fan_1 Calculating status...
Currently Being Moderated
Mar 6, 2013 2:45 AM

This topic has probably been rasied many times, and indeed I hope it has so that a) I know its not my Mac, and b) maybe apple will sort it out if there are enough of us with this issue...


I have a MacBookPro which I have not overloaded with Apps. Just general day to day stuff. I usually have a few open such as Mail, Safari and iCal.


When I leave the Mac running for a while the screen saver comes on with very nice neon fractal patterns. My problem occurs when I then want to use the Mac again. when I try to wake the Mac it becomes unresponsive. It thinks about it for a while; sometimes with a clock, sometimes without. Sometimes the password box appears, but it doesn't always let me type into it.


Eventually it works itself out after a frustrating minute or 3. Then once it's unlocked and 'working' again it hangs and takes an age to do minimal tasks. It's oftern easier to just reboot.


Does anyone know why this happens? Is there anything I can do to improve the performance of this?

MacBook Pro (15-inch Early 2011), Mac OS X (10.7.3)
  • CT Level 6 Level 6 (14,970 points)

    How much RAM?  If you look at Activity Monitor, at the bottom under System Memory, now man page outs and how many page ins?  What happens if you don't use the neon fractal pattern screen saver?

  • CT Level 6 Level 6 (14,970 points)

    Ok.  Have a look at those Page outs/ins next time it happens.  That is just one possible angle. 


    Also, if this were happening to me, I would note the time of day it happens next, then open up Console (Utilities folder) and review the system logs for that time to see if the computer says anything helpful about the cause.

  • Eric Root Level 6 Level 6 (13,810 points)

    You might try this.


    Wakeup problems with Macbook Pro: Boot to Recovery drive (command - R). Run Disk Utility/Repair Permissions and Repair Disk. Reboot to startup disk. Hold down the option key while using the Finder "Go To Folder" command. Enter ~`/Library. Delete Cache folder and Cookies folder. Empty trash.

  • Eric Root Level 6 Level 6 (13,810 points)

    Do you have a backup, like Time Machine or a clone program? If not, you should. If you do have one, backup before doing anything. Then if something does go wrong, you won't lose any data.


    This discussion is where I got the instructions I posted above. Apple tech support is who recommended this fix.


    Wakeup Computer


    Booting into the Recovery mode is merely booting into a partition which Mountain Lion created on your hard drive or it will take you to an Internet site which give you the same options. Once there you will see an option to reinstall the OS, recover from Time Machine, and Disk Utilities (there may be more). This article talks about the recovery mode. You can basically ignore what is there because it isn't what needs to be done.


    OS X Recovery


    Select Disk Utility and run Repair Permissions a couple of times.  Then run Repair disk to make sure your hard drive is okay.


    Once you have done that, restart without holding down any keys - it is a normal startup.


    Then finish the rest of the instructions.


    What this does is removes old, possibly corrupt files, that are slowing your wakeup.

  • Union Calculating status...

    Months ago, after updating to latest OSX, my early 2011 Macbook Pro developed the 'slowness after screen saver' problem. I un-ticked screen saver and just used screen sleep settings and hard disk sleep settings. No problem with slowness after a reboot.


    Then, just this week, I enabled screen saver again, just to check. Same issue: Mac slow to wake up and slow for a while in most or all tasks after that. Reboot fixes it.


    My guess is, there is some OSX glitch with screen saver affecting Macbook Pros of the age of mine and maybe others too. Indeed, maybe many.


    It really should have been fixed by now, one would think.


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.