To reproduce: Click an extension icon in Google Chrome that opens a frame below it. If the laptop lid is closed when the frame is open the screen does not lock. Using Chrome 31.0.1650.63.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pm-utils 1.4.1-9fix.ubuntu12.04
ProcVersionSignature: Ubuntu 3.8.0-35.50~precise1-generic 3.8.13.13
Uname: Linux 3.8.0-35-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Thu Jan 9 18:13:20 2014
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: pm-utils
UpgradeStatus: No upgrade log present (probably fresh install)
Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 49579, so it is being marked as such.
This is a fundamental bug in the design of X11 and cannot be easily fixed within X11.
You should manually lock your screen if a locked session is important to you.
Please continue to report any other bugs you may find.