8 Replies Latest reply: Jun 18, 2009 6:17 AM by tmac2006
wuli815 Level 1 Level 1 (0 points)
Hi all:

Since last week, my mouse pointer start lag, and I have Apple bluetooth mouse and Apple bluetooth keyboard. But that is not the point, even though I disconnet both bluetooth devices, and using trackpad my mouse pointer still lag.

I have tried to use reset PRAM (apple/option/p/r) and still not solve the issue.
I have tried to reset the SMC (left shift/control/option) with power button and wait for 5 second to reboot, and still not solve the issue.
I have uninstall i-stat in my dashboard, and the issue still exist.
I have turn-off the airport connect and the issue still exist.
I have tried to disconnect all the external devices such as bluetooth and external display, and the issue still exist.

I am sure that this is not the bluetooth issue, and I believe that must be some program conflict in my system. and even I use the trackpad and the mouse pointer still have the lag issue.

Does anyone know how to check if my system has been conflict or any log I can check?

Can any one give me other solution and I can keep trying to see if the issue solve.

Please kindly give me some suggestion and I will try to see we can sort it off.

by the way, I took my mbp to apple store, and they rest PRAM and the issue disappear in the store, but when I take it home, the issue appear again. That is so weird.

Macbook pro (late 2008), Mac OS X (10.5.6)
  • wuli815_2 Level 1 Level 1 (0 points)
    I do not know why my previous apple id won't let me login, and I have to create the new login again in the support discussions.

    Apple support called me and give me some solution:

    1. Disable all bluetooth devices
    2. Take out the battery
    3. Hold the power button for 10 seconds
    4. reboot the computer
    5. Enable bluetooth devices

    The issue solve when I perform the above steps.

    But after 10 minutes, the issue come back.

    I'm still working on.
  • wuli815_2 Level 1 Level 1 (0 points)
    I have an intermittent lag/jumpy problem with my trackpad\Apple Wireless Mighty Mouse on new 15" mbp (late 2008).

    On 3/1/2009 (Sun)
    I bring mbp to Apple store, the tech person rest PRAM and the issue gone right away.
    But when I bring it home, I connect with Apple Wireless Mighty Mouse and Apple Wireless Keyboard both using bluetooth to connect with my mbp.
    I start to get lag/jumpy program with my mouse.

    When I at home, I start trying the following step:

    1.Rest PRAM (apple/option/p/r). Not solve the issue.
    2.Rest SMC (left shift/control/option) with power button and wait for 5 seconds, and then click power button. Not solve the issue.
    3.Uninstall i-stat pro in my dashboard. Not solve the issue.
    4.Turn off the airport connection. Not solve the issue.
    5.Disconnect Apple Wireless Mighty Mouse and Apple Wireless Keyboard. Not solve the issue.

    On 3/3/2009 (Tue) Case ID#??????

    Apple Support call me and ask me do the following step:
    1.Disconnect Apple Wireless Mighty Mouse and Apple Wireless Keyboard.
    2.Take out the battery from mbp
    3.Hold the power button for 10 seconds
    4.Reboot the mbp
    5.Connect Apple Wireless Mighty Mouse and Apple Wireless Keyboard.
    The issue solved when I perform the above steps.

    After 10 minutes, the issue come back again.

    I have try as many solutions as I can, I start to think that may not be the bluetooth issue.

    It maybe the system sleep issue, cause when the mbp wake up after sleep, the issue appear right away.

    But right now, when I reboot the system, the issue still exist.

    I do not want to do the above steps (apple support) everytime when I have issue, it is so annonying.
  • wuli815_2 Level 1 Level 1 (0 points)
    I believe the issue solved for now.

    I found someone change the external monitor power outlet to different plug-in. So I change the outlet to different plug-in.

    The mouse lag issue disappeared in both monitors (mbp and external).

    Hope this information help.
  • Ben Poole Level 1 Level 1 (5 points)
    Thanks for the update. I've noticed the same behaviour, and I've read a few posts from others who have observed this too:

    Unibody 15" MBP, Microsoft Notebook 5000 Bluetooth mouse. All fine until I connect the MacBook to my 24" cinema display - then the mouse starts the lagging behaviour. It's almost like it can't adjust to the two disparate screen resolutions, although I also use the set-up elsewhere with a 17" external screen with no issue.

    So, I will try switching power outlets on the Cinema display, see if that helps. Weird!
  • markal3x Level 1 Level 1 (0 points)
    Weird. I am having the same issue when connecting to my 24" BENQ. Will try power outlet trick.
  • markal3x Level 1 Level 1 (0 points)
    This solution worked for me. Thanks. I've been wrestling with this for months!

    I plugged my monitor directly into the wall socket instead of having it plugged into the same power bar shared with my unibody macbook pro. Mouse lag and screen lag has disappeared.

    Great
  • Ben Poole Level 1 Level 1 (5 points)
    Ditto. I moved my Cinema Display's plug along one on the power strip it's connected to, and so far so good - no lagging. How very, very bizarre.
  • tmac2006 Level 1 Level 1 (0 points)
    Yes! This worked for me too. The only additional thing to add is that I had my 2009 17" MBP plugged into one UPS and my 24" Acer screen plugged into a second UPS. Switching the screen to a third power bar that was plugged directly into the wall seems to have worked for me. Thanks for the tips!