Annoying 15" PowerBook behavior...

Discussion in 'Macintosh Computers' started by dkeninitz, Mar 29, 2003.

  1. macrumors regular

    Feb 16, 2003
    Germantown, MD
    I've got a 1ghz 15" PB. I recently upgraded the memory to 1gb. Whenever I'm on battery power, I experience annoying response delays when working in Excel. For example, double tapping on the track pad and then dragging the scroll bar results in no apparent response for a second or so (seems like an eternity though), then the bar suddenly jumps. There are similar delays for many other actions, such as dragging a cell to fill adjacent cells, applying formatting such as bold or underline, etc. I see
    the little clock while I'm waiting. Some facts:

    -This was happening even before I upgraded the memory.

    -This happens even with no other applications open, and with relatively compact spreadsheets.

    -It happens whether the batter is fully or only partially charged. Also, I properly calibrated the battery when I first got the machine a month ago, and I get plenty of battery life from each charge.

    -I've tried the "highest performance" energy saving choice, and the custom choice with "highest" processor performance selected. I get the delays regardless.

    -With the power adapter connected, all of these delays go away, and response is instantaneous.

    Does anyone have an idea what could be causing this? It's a mystery to me that it only happens on battery power. Thanks for any help. This is driving me NUTS!
  2. macrumors member

    Mar 18, 2003
    Since you are fortunate enough to have a Ti then Diskwarrior can be used in OS9 if you havent tried it. You can optimize (defragment) the hard drive after booting up the CD. This could be the reason with your slowed performance. Others probably have other ideas but I felt this really helped performance on my 15" 667 DVI model. Diskwarrior is incompatable with my 17" at the moment, but they are working on an OSX compatable version.
  3. macrumors 6502


    Apr 30, 2002
    I may have the solution...

    My brother in law has a 1 GHz TiBook as well. When he was running the TiBook off of the battery and waking up from sleep, the trackpad would not work at all. He had complete control of the computer except the trackpad. He did some research and found a solution that seemed to work...

    When you're running off of the battery, Processor cycling turns on by default. If you disable Processor Cycling (in the Energy Saver prefs I think), it might fix your problem and the trackpad should work from now on. He hasn't had the problem since. Try it and let us know if it works. Good luck!
  4. macrumors newbie

    Mar 11, 2003
    this is probably caused by the little 'click' sound effect excel plays when you scroll through a spreadsheet. since, on battery, the powerbook will turn off the sound subsystem when it hasn't been used in a while, it has to cycle it back on when a sound is being played -- and this process takes a couple of seconds. turn off 'provide feedback with sound' in the excel preferences, general section.
  5. macrumors member

    Mar 18, 2003
  6. macrumors 6502a

    Apr 29, 2002
    keepsoundawake, see versiontracker
  7. macrumors 68030


    Dec 7, 2002
    Florida, USA
    It is the annoying sounds in all the Microsoft Office products. It causes the audio system to 'boot up', which takes a second.
  8. macrumors 6502a


    Dec 30, 2002
    Chicago, IL, USA
    what about annoying issues in photoshop? for example, the shift-key works wierd. when making a marquee/shape/crop etc, holding shift keeps proportions constrained. on my tibook, the M/S/C drags out in whatever weird shape you did, only snapping to constrained proportions when you release the click! It's very frustrating.
  9. thread starter macrumors regular

    Feb 16, 2003
    Germantown, MD
    Thanks everyone - the sound latency appears to be the problem, because now that you all mention it, the problem is exclusively related to actions that produce sounds. I'll head for VersionTracker! Thanks again.

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