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Thread: Slow ubuntu 11.10 when AC power adapter is plugged in

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    Join Date
    May 2010
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    Angry Slow ubuntu 11.10 when AC power adapter is plugged in

    I have a new laptop Lenovo ThinkPad L520 (7859-5BG) Core i5-2520M(2.5GHz) with 4GB RAM.

    Having installed Ubuntu 11.10 32-bit, while browsing with Chrome on GNOME classic (no effects), I noticed 173% CPU usage by chrome browser process, and the system slowly got very very slow,

    Now, at this stage as I removed the power adapter, the system suddenly got faster (and stopped the lagging behavior) and CPU usage drops down to 48% !!

    Can anyone tell me what exactly does this indicate ? What is wrong, is it some bug with power management or what ?


    Regards,
    Last edited by xizzling; February 21st, 2012 at 05:10 AM.

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