[Bug 1043769] Re: Monitor image not clickable in display settings after the first time

[Ubuntu Foundations Team Bug Bot]

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** Tags added: patch

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https://bugs.launchpad.net/bugs/1043769

Title:
  Monitor image not clickable in display settings after the first time

Status in Cairo Graphics Library:
  Fix Released
Status in GNOME Control Center:
  Fix Released
Status in “cairo” package in Ubuntu:
  New
Status in “gnome-control-center” package in Ubuntu:
  Confirmed

Bug description:
  [Impact]

  Users with multiple displays are unable to change display settings
  (arrange displays, change resolutions, change the primary display,
  etc.) with 'gnome-control-center display' unless they happen to know
  to switch focus to another window and switch back again between every
  mouse click.

  [Test Case]

   1. Have a multi monitor setup with 2 (or more) monitors
   2. Open the display settings applet in the control center
   3. Click on the monitor that is not currently selected
   4. Try to select the originally selected monitor by clicking on it

  [Regression Potential]

  The patches in the attached debdiffs are from the upstream git
  repositories and are in the latest upstream releases.  Raring has been
  using these upstream releases for some time now; any regressions
  likely would have showed up in Raring.

  That being said, the cairo change is potentially risky, as it alters
  some low-level behaviors and many packages depend on cairo.  The
  changes to gnome-control-center are limited to the Displays panel; any
  regressions should only affect that panel (and that panel is already
  severely broken with multiple displays).

  [Original Bug Report]

  Steps to reproduce:

  * Have a multi monitor setup with 2 monitors
  * Open the display settings applet in the control center
  * Click on the monitor that is not currently selected
  * Click on the monitor that was initially selected

  Expected result:
  * The second click should select again the clicked monitor

  Actual result:
  * The second click fails to select the clicked monitor, selection remains where it is

  If you focus another application and focus back to the display
  settings window, then you can move the selection again for one single
  time, then the bug appears again until you switch focus again.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: gnome-control-center 1:3.4.2-0ubuntu13
  ProcVersionSignature: Ubuntu 3.5.0-13.13-generic 3.5.3
  Uname: Linux 3.5.0-13-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.5.1-0ubuntu3
  Architecture: i386
  Date: Thu Aug 30 13:14:48 2012
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gnome-control-center
  UpgradeStatus: Upgraded to quantal on 2012-08-29 (0 days ago)
  usr_lib_gnome-control-center:
   activity-log-manager-control-center 0.9.4-0ubuntu3
   deja-dup                            23.90-0ubuntu1
   gnome-control-center-signon         0.0.13-0ubuntu1
   indicator-datetime                  12.10.0-0ubuntu1

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