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[Bug 1351890] Re: Changing external screen resolution with dual monitors


Hello Guy, or anyone else affected,

Accepted gtk+2.0 into precise-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/gtk+2.0/2.24.10-0ubuntu6.2 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in

** Changed in: gtk+2.0 (Ubuntu Precise)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

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  Changing external screen resolution with dual monitors

Status in GTK+:
  Fix Released
Status in ubuntu-mate:
  Fix Released
Status in gtk+2.0 package in Ubuntu:
  Fix Released
Status in mate-control-center package in Ubuntu:
  Fix Released
Status in gtk+2.0 source package in Precise:
  Fix Committed
Status in mate-control-center source package in Precise:
Status in gtk+2.0 source package in Trusty:
  In Progress
Status in mate-control-center source package in Trusty:
Status in gtk+2.0 package in Debian:
  Fix Released

Bug description:


  Due to a bug in GTK+2, mate-display-properties crashes when the screen
  resolution is changed *outside* of it (e.g. by changing the resolution
  not via that app, but somewhere else).

  The attached patches fix the issue in GTK+2 and prevent crashing of

  Since this issue caused much inconvenience for users, the fix should
  be backported to all current stable releases of Ubuntu.

  [Test Case]

  The easiest way to reproduce it is via Virtualbox:

  1. Run mate-display-properties in the VM.
  2. Make the VM go full-screen.
  3. See m-d-p crash.

  [Regression Potential]

  After several months of testing the patched version of GTK+2 in Debian Jessie, I found no regressions.
  I consider the regression risk very low here.

  There were originally some bugs with a few applications (notably
  Spotify) crashing. We think we've backported patches to fix that -
  some refcounting issues - but please check a few apps to see they
  still work.

  [ Original report ]

  Changing extrnal screen resolution with dual mon

  ProblemType: Crash
  DistroRelease: Ubuntu 14.10
  Package: mate-control-center 1.8.1+dfsg1-4
  ProcVersionSignature: Ubuntu 3.16.0-6.11-generic 3.16.0-rc7
  Uname: Linux 3.16.0-6-generic i686
  ApportVersion: 2.14.5-0ubuntu3
  Architecture: i386
  CrashCounter: 1
  Date: Sun Aug  3 07:09:21 2014
  ExecutablePath: /usr/bin/mate-display-properties
  InstallationDate: Installed on 2014-08-03 (0 days ago)
  InstallationMedia: Ubuntu MATE 14.10 "Utopic Unicorn" - Alpha i386 (20140731)
  ProcCmdline: mate-display-properties
  SegvAnalysis: Skipped: missing required field "Disassembly"
  Signal: 11
  SourcePackage: mate-control-center
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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