[Bug 965073] [NEW] firefox is unresponsive for the first 10-15 seconds after it gains focus

Nick Moffitt nick.moffitt at canonical.com
Mon Mar 26 09:08:26 UTC 2012


Public bug reported:

I keep firefox on its own desktop, and switch to it via a keybinding.
This problem manifests itself even when switching focus via mouse on the
same desktop, though.

Basically every time I come back to firefox, it appears to ignore my
input for a good long while.  I am not seeing any swapping, and even the
mouse cursor does not change in response to hover events.

The effect goes away when I restart the browser, but slowly returns the
longer I leave it running.

This only started happening this weekend, and it happens in both unity
2d and 3d.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: firefox 11.0+build1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  nick      10792 F.... pulseaudio
BuildID: 20120313141247
Channel: release
Date: Mon Mar 26 10:04:10 2012
EcryptfsInUse: Yes
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
ProcEnviron:
 TERM=xterm
 LC_COLLATE=C
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=11.0/20120313141247 (Running)
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: Upgraded to precise on 2012-02-06 (48 days ago)
WpaSupplicantLog:
 
dmi.bios.date: 06/25/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET55WW (3.05 )
dmi.board.name: 7465CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6DET55WW(3.05):bd06/25/2009:svnLENOVO:pn7465CTO:pvrThinkPadX200s:rvnLENOVO:rn7465CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7465CTO
dmi.product.version: ThinkPad X200s
dmi.sys.vendor: LENOVO

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise release-channel

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https://bugs.launchpad.net/bugs/965073

Title:
  firefox is unresponsive for the first 10-15 seconds after it gains
  focus

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