The same issue occasionally affects Ubuntu 14.04 (Unity). It seems that the effect is just really, really slow. Usually it simply delays taking the screenshot with about 10 seconds, but sometimes the white flash effect hangs completely.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/1137907 Title: After pressing my Print Screen button, screen turns white and stays white with GTK 3.8 Status in GTK+ GUI Toolkit: Fix Released Status in “gtk+3.0” package in Ubuntu: Fix Released Bug description: After pressing my Print Screen button, screen turns white and stays white. I hear the "snapshot" sound, and my whole screen turns white as if from a flash. But it stays white and unusable. I can only recover by pressing Alt-F4, Escape, or killing gnome-screenshot. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: gnome-screenshot 3.6.1-0ubuntu1 ProcVersionSignature: Ubuntu 3.8.0-8.17-generic 3.8.0 Uname: Linux 3.8.0-8-generic x86_64 ApportVersion: 2.8-0ubuntu4 Architecture: amd64 Date: Fri Mar 1 09:33:55 2013 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-precise-amd64-20120703-2 EcryptfsInUse: Yes InstallationDate: Installed on 2013-01-09 (50 days ago) InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120703-15:08 MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-screenshot UpgradeStatus: Upgraded to raring on 2013-01-31 (28 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/gtk/+bug/1137907/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp