desktop-packages team mailing list archive

[Cas <605567@xxxxxxxxxxxxxxxxxx>]

Just thought I would expand on Ahmad's workaround.

As it is only icon-sprites that cause the slowdown, the quickest
solution was to disable all icon-sprites with an AdblockPlus filter for
bug.launchpad.net:

||bugs.launchpad.net/+icing/*/icon-sprites

However I wanted to still keep some of useful bug icons so instead I
added the following to userContent.css in
~/.mozilla/firefox/*.default/chrome/ so that the most frequent but
unnecessary icon-sprites were disabled.

@-moz-document domain(bugs.launchpad.net) {
.person {background-image: none !important;}
.team {background-image: none !important;}
.add {background-image: none !important;}
.download-icon {background-image: none !important;}
.bug {background-image: none !important;}
}

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/605567

Title:
  Extremely slow painting of launchpad.net bug details page with nvidia
  driver

Status in The Mozilla Firefox Browser:
  Confirmed
Status in “firefox” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: firefox

  Launchpad.net bug detail pages are painted extremely slowly by Firefox
  on my machine. I'm running Ubuntu Lucid 64-bit, and I have the
  proprietary nvidia driver (from the Ubuntu repositories) installed,
  version "current". The machine has two 8800 GTX GPU's with 768 MB
  each, so the available graphics power should not be a problem.

  It takes many seconds (sometimes tens of seconds) to draw the page,
  during which the entire computer slows to a crawl. Nothing happens on
  the screen during this time. Whenever I scroll the page up so that
  more of the page is revealed at the top of the screen, this is painted
  extremely slowly as well. Scrolling down (once the page is fully
  painted) does not produce slow-downs, so the problem appears to be
  with the content at the top of the page.

  It appears to be an interaction between Firefox, Launchpad.net and the
  proprietary NVidia driver. I don't notice slowdowns like this on any
  other web page (including other launchpad.net pages). Other browsers,
  such as Chrome, draw Launchpad bug detail pages with lighting speed.
  And when I use the nv or nouveau drivers the problem does not appear
  either.

  Since Chrome can paint the pages at fast speeds, Firefox should be
  able to as well, so I still think this is a Firefox problem.

  If there is any way I can determine exactly what it is that is taking
  so much time and slowing down the entire computer, please let me know!
  Or if there is any other way in which I can help debug this problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: firefox 3.6.6+nobinonly-0ubuntu0.10.04.1
  ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5
  Uname: Linux 2.6.32-23-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Wed Jul 14 21:03:25 2010
  FirefoxPackages:
   firefox 3.6.6+nobinonly-0ubuntu0.10.04.1
   firefox-gnome-support 3.6.6+nobinonly-0ubuntu0.10.04.1
   firefox-branding 3.6.6+nobinonly-0ubuntu0.10.04.1
   abroswer N/A
   abrowser-branding N/A
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
  SourcePackage: firefox

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