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Thread: Ubuntu 12.10 extremely slow unity

  1. #1
    Join Date
    Mar 2013

    Unhappy Ubuntu 12.10 extremely slow unity


    I have some serious performance issues with unity. I use the ATI Proprietary driver from the fglrx official repository of ubuntu.

    1) Moving windows about is sometimes smooth but after a while it gets very jerky almost to the point of being unusable.
    2) Some other effects are extremely slow, for instance the "expo" effect when I click on firefox and unity exposes all firefox windows runs at 2-3 PFS.
    3) Scrolling on firefox/chromium and other applications is jerky and slow. With the radeon open source driver scrolling was flawless (60 fps constant) with no delay.
    4) Also another issuethat annoys me way too much is that the mouse cursor lags also, which baffles me because it is supposed to be a hardware cursor that by definition never lags.

    I can't use the radeon open source for it has it's own problems and bugs. It also goes extremely slow (2-3 FPS) when I enable both monitors at full resolution.

    Can someone help me out to fix those issues?

    System: core i7 920 no overclock
    RAM: 6GB
    Graphics Card: ATI Radeon HD 5870
    Monitors: 30" 2560x1600 & 22" 1920x1080
    OS: Ubuntu 12.10 fully updated
    uname -a: Linux NekHomeWorkstation 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

     nektarios@NekHomeWorkstation:~$ fglrxinfo 
    display: :1  screen: 0
    OpenGL vendor string: Advanced Micro Devices, Inc.
    OpenGL renderer string: ATI Radeon HD 5800 Series
    OpenGL version string: 4.2.11903 Compatibility Profile Context
    nektarios@NekHomeWorkstation:~$ glxgears 
    1235 frames in 5.0 seconds = 246.990 FPS
    1291 frames in 5.0 seconds = 257.586 FPS
    1230 frames in 5.0 seconds = 245.995 FPS
    1287 frames in 5.0 seconds = 257.044 FPS
    1139 frames in 5.0 seconds = 227.258 FPS
    Last edited by Nektarios80; March 9th, 2013 at 01:41 PM.

  2. #2
    Join Date
    Feb 2010
    Ubuntu Development Release

    Re: Ubuntu 12.10 extremely slow unity

    There are driver PPAs inked in the following page that you may want to look into .
    “Start where you are. Use what you have. Do what you can."

    Ubuntu Documentation Search: Popular Pages
    Ubuntu: Security Basics
    Ubuntu: Manual

  3. #3
    Join Date
    Mar 2013

    Re: Ubuntu 12.10 extremely slow unity

    try opening gedit go to preferences go to plugins and deselect the file manager plugin. let me know if your performance gets better after.

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