[Bug 374642] Re: high cpu usage viewing pages that contain .gif images (nvidia driver, opengl and antialiasing settings related)

sterios prosiniklis steriosprosiniklis at gmail.com
Sun May 10 22:44:09 UTC 2009


** Description changed:

  Jaunty running from a Live cd, nvidia proprietary driver and extra visual effects enabled
  On this page http://www.wdvl.com/Multimedia/Animation/GIF/Examples.html
- the cpu usage is almost 100%, when in nvidia xserver settings the opengl and antialiasing settings
+ the cpu usage is almost 100%, when in nvidia xserver settings, the opengl and antialiasing settings
  are set to sync to vblank,allow flipping and 16x respectively (or in an other combination of high quality settings).
  Problem does not occur when .gif images are filtered with addblock or when nvidia xserver settings are set to default values.
  Quantity of .gif images seems not to be relevant, same results in pages with less animations.
  Same behavior exists in hardy normal installation, intrepid wubi installation.
  This comment https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/125970/comments/78 in a similar bug points to a page
  where the .gif image (not animated) if not filtered, creates the same problem in hardy. Intrepid and jaunty are not affected.

** Description changed:

  Jaunty running from a Live cd, nvidia proprietary driver and extra visual effects enabled
  On this page http://www.wdvl.com/Multimedia/Animation/GIF/Examples.html
  the cpu usage is almost 100%, when in nvidia xserver settings, the opengl and antialiasing settings
  are set to sync to vblank,allow flipping and 16x respectively (or in an other combination of high quality settings).
  Problem does not occur when .gif images are filtered with addblock or when nvidia xserver settings are set to default values.
  Quantity of .gif images seems not to be relevant, same results in pages with less animations.
  Same behavior exists in hardy normal installation, intrepid wubi installation.
- This comment https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/125970/comments/78 in a similar bug points to a page
- where the .gif image (not animated) if not filtered, creates the same problem in hardy. Intrepid and jaunty are not affected.
+ This comment https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/125970/comments/78 in a similar bug points to a page, where the .gif image (not animated) if not filtered, creates the same problem in hardy. Intrepid and jaunty are not affected.

-- 
high cpu usage viewing pages that contain .gif images (nvidia driver, opengl and antialiasing settings related)
https://bugs.launchpad.net/bugs/374642
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