Is the Powerbook Rev. D trackpad causing high CPU Usage issue resolved in 10.4.3?

Discussion in 'macOS' started by MGLXP, Oct 29, 2005.

  1. MGLXP macrumors regular

    Sep 29, 2005

    I currently have a Powerbook 12inch 1.5GHz (Rev. D). Since the release of Tiger, a bug in the Apple Trackpad driver (for Rev. D Powerbooks only I believe) has caused a process called KernelTask to be constantly at 8% (or similar number)CPU Usage when the trackpad is enabled, obviously lowering battery life. This issue is described here: I know there is a workaround by using the SideTrack driver which lowers the KernelTask process down to 1%CPU, but I would rather be using the Apple Driver so I can enable 2 finger scrolling. Does anyone know if this issue has been resolved in 10.4.3?

  2. aznsal612 macrumors member

    Oct 20, 2004
    I am on the same boat here buddy. I second this question in hopes of someone more knowledgable who can lay down the law on this specific issue.

    I've been using a trial of SideTrack for quite some time, and although it's nice, it's nagging, and I'd rather have less third party software and that annoying register pop-up every so often. :cool:

    Edit: I've updated via 10.4.3 Combo Update. Prior to updating, I removed Sidetrack 1.2.1, and after a few minutes to reboot, I launched Activity Monitor and now my kernel_task is hovering at 1-2% when idling. While using the two finger scrolling feature, kernel_task registers anywhere from 2% to 3%. It seems that WindowServer has a higher CPU% rate when the scrolling is used, so it seems as if Apple has addressed that issue.

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