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[Launchpad Bug Tracker <1449607@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: chromium-browser (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1449607

Title:
  Random Chromium / Chrome slowdowns with hardware acceleration

Status in chromium-browser package in Ubuntu:
  Confirmed

Bug description:
  Since update from 14.04 --> 15.04, bot Chromium and Chrome randomly
  slow down to a complete halt after a while using them. There doesn't
  seem to be any pattern on when this starts happening. Sometimes when
  opening a new tab from a unity-webapp (eg Gmail) but not always.

  As well as either Chrome or Chromium, this also makes Unity itself
  unresponsive - eg I can't act on anything on the UI be it the dash or
  another app. I can log into a terminal outside X (eg CTRL+ALT+F1) and
  this is perfectly responsive even when the whole UI is locked up.
  There's barely any system load - often with several gigs of ram free
  and very low CPU load and no usage on the swap.

  After I manually kill the "--type=gpu-broker" associated with either
  chrome or chromium they both seem to recover, together with Unity.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: chromium-browser 41.0.2272.76-0ubuntu1.1134
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Apr 28 15:41:18 2015
  InstallationDate: Installed on 2014-01-16 (467 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  SourcePackage: chromium-browser
  UpgradeStatus: Upgraded to vivid on 2015-04-23 (5 days ago)
  gconf-keys: /desktop/gnome/applications/browser/exec = b'/opt/google/chrome/google-chrome\n'/desktop/gnome/url-handlers/https/command = b'/opt/google/chrome/google-chrome %s\n'/desktop/gnome/url-handlers/https/enabled = b'true\n'/desktop/gnome/url-handlers/http/command = b'/opt/google/chrome/google-chrome %s\n'/desktop/gnome/url-handlers/http/enabled = b'true\n'/desktop/gnome/session/required_components/windowmanager = b''/apps/metacity/general/compositing_manager = b''/desktop/gnome/interface/icon_theme = b'gnome\n'/desktop/gnome/interface/gtk_theme = b'Clearlooks\n'
  modified.conffile..etc.default.chromium.browser: [deleted]

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