5 Replies Latest reply: Apr 23, 2013 2:45 AM by cuti_95
plc5700 Level 1 Level 1

I'm running OSX 10.7.4 on my Macbook Pro.


For reasons I have yet to figure out - every now and then my macbook simply stalls for about 5 seconds.

Sound Stops Playing, Mouse becomes unresponsive, Keyboard, not responding - Apps not processing.


Network is not lost during this - or so it would appear (perhaps my apps reconnect without me knowing about it - i don't know).


I have (and there it happended again ) not yet figured out if its periodical or due to some hardware sensor value or whatever??


It does not appear to be related to any specific application - I have experienced this while using Firefox, Chrome, Safari, Mail, Evernote, Skype, Citrix Receiver/Viewer, VMware Fusion and others.....


Does anybody else experience something similar like this?

MacBook Pro, Mac OS X (10.7.2)
Solved by Bimmer 7 Series on Jul 20, 2012 2:27 AM Solved

Try doing a SMC RESET.


If that doesn't work, try verify disk permissions and repair them if errors are found then restart your macbook.

  • Bimmer 7 Series Level 6 Level 6

    Try doing a SMC RESET.


    If that doesn't work, try verify disk permissions and repair them if errors are found then restart your macbook.

  • Austin Kinsella1 Level 6 Level 6
    Mac OS X

    Run Activity Monitor and observe what it shows when there is a stall.

  • plc5700 Level 1 Level 1



    It appears that the Verify Disk Permissions and a Repair Permissions did the job.


    I haven't had the problem for a couple of days now - so that did it.

  • Bimmer 7 Series Level 6 Level 6

    Perfect.....Now you know what to do if it happens again.....



  • cuti_95 Level 1 Level 1


    I am a newbie to this discussion and would like to get some help. I recently experienced the same problem as said in this thread.


    My Mac is mid 2009 model with OS X 10.5.8, 4GB RAM, CPU 2.2GHz dua core)


    I recently stalled up often when I had MS. word, firefox and others run at the same time. After each move (new page on firefox or typing some words) it stalled there for quite sometimes, a few second at least, and occasionally it stood till then only way to get it run again is to turn it off with the power button held down


    what I did to it is:


    I checked the Active monitor and found that the CPU usage and RAM were very ok (around 15% for CPU and 20% for RAM when I run severy applications) so my conclusion was: CPU and RAM were OK.


    I started to deleted several applications which I rarely use, hoping that it helped. it seemed that after I did, it peformed better but still experiencing stalling for sometimes. the PROBEM did not go away


    I run the solution as suggested in this thread , then it did not work . One thing I noted in the ACtive monitor was that one process called "HP product research" appeared in RED text (all other processess are normally black). I do not know what it was or


    so any suggestion differently would be appreciated.