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Thread: XORG uses 100% cpu for a long period

  1. #1
    Join Date
    Apr 2011
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    311
    Distro
    Ubuntu 12.04 Precise Pangolin

    XORG uses 100% cpu for a long period

    The system is a P-IV 2,4gHz with 256Mb of memory. I use Lubuntu 11.10 and have xrdp installed. The system is constantly used by the children, but I wanted to change a few things so installed xrdp.

    XRDP works, but on the host system the P-IV the cpu runs at 100% for 10-30 seconds after I display a windows. The culprit is xorg, that takes between 70-80% of the cpu also after the window is displayed on the guest system. For the guest system I use the Remmina client.

    The cpu load has never been that high when I used xrdp in the past on Ubuntu/Gnome. Also a Windows XP system on a P-III 500mHz and 384MB works perfectly with the same client. The memory used by the host system was around 170MB leaving about 70MB free for cache etc.

    The combination LXDE and xorg seem to create this high cpu load for this prolonged period of time. The cpu is not too slow and memory seems also enough.

    Is the problem known by more persons and what can I do about it?
    Last edited by BertN45; December 28th, 2011 at 11:18 PM.
    Desktop: P-IV 3.2gHz, RAM= 1.5GB, Disk=80GB+500GB, LCD=22", Bought 2012 $90
    File Server: P-III 650mHz, RAM = 384MB, Disks 240 + 300GB, Bought 2005 $60
    File Server HP Vectra VL8i SFF, 2 cables connected: Ethernet and Power

  2. #2
    Join Date
    Jun 2012
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    2

    Re: XORG uses 100% cpu for a long period

    I encounter a similar problem on ubunutu 12.04:
    once I open Remminna and try to connect to a remote windows OS, my cpu raises to 100% , mostly because of the Xorg process ...
    In case you had a solution, I'll be happy to learn about it.

  3. #3
    hakermania's Avatar
    hakermania is offline Τώρα ξέρεις τι γράφω εδώ!
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    Ubuntu Development Release

    Re: XORG uses 100% cpu for a long period

    Please confirm this bug if you are affected: https://bugs.launchpad.net/ubuntu/+s...au/+bug/997075

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