Unity locks screen after unlocking

[Lars]

After locking the computer I wanted to unlock the computer again. Once entering the desktop the screen gets locked without doing anything after several seconds. Unlocking for the second time gives no problem. However, when locking the screen again, the same problem occurs again.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.1.2+14.04.20140313-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
Uname: Linux 3.13.0-17-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 331.38 Wed Jan 8 19:32:30 PST 2014
 GCC version: gcc version 4.8.2 (Ubuntu 4.8.2-16ubuntu6)
.tmp.unity.support.test.0:

ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Mon Mar 17 17:26:30 2014
DistUpgraded: 2014-03-14 17:04:08,335 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
 bbswitch, 0.7, 3.13.0-17-generic, x86_64: installed
 nvidia-331-updates, 331.38, 3.13.0-17-generic, x86_64: installed
 virtualbox, 4.3.6, 3.11.0-18-generic, x86_64: installed
 virtualbox, 4.3.6, 3.13.0-17-generic, x86_64: installed
GraphicsCard:
 NVIDIA Corporation GF108GLM [Quadro 1000M] [10de:0dfa] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:1631]
InstallationDate: Installed on 2013-06-15 (275 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
JockeyStatus:
 kmod:nvidia_304_updates - NVIDIA legacy binary driver - version 304.117 (Proprietary, Disabled, Not in use)
 kmod:nvidia_331 - NVIDIA binary driver - version 331.38 (Proprietary, Disabled, Not in use)
 kmod:nvidia_331_updates - nvidia_331_updates (Proprietary, Enabled, Not in use)
 kmod:nvidia_304 - NVIDIA legacy binary driver - version 304.117 (Proprietary, Disabled, Not in use)
MachineType: Hewlett-Packard HP EliteBook 8560w
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic root=UUID=4e34beb2-745f-4a18-8d61-eff5a31a069d ro quiet splash pcie_aspm=force
SourcePackage: unity
UpgradeStatus: Upgraded to trusty on 2014-03-14 (3 days ago)
dmi.bios.date: 07/25/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SVD Ver. F.03
dmi.board.name: 1631
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 01.35
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68SVDVer.F.03:bd07/25/2011:svnHewlett-Packard:pnHPEliteBook8560w:pvrA0001D02:rvnHewlett-Packard:rn1631:rvrKBCVersion01.35:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 8560w
dmi.product.version: A0001D02
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.11+14.04.20140310-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-1ubuntu1
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Mon Mar 17 12:44:06 2014
xserver.configfile: default
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.15.0-1ubuntu7

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Margarita Manterola (marga-9)]

This might be a dupe of https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1291365. Although in that case it's described as only happening after having left the desktop locked for a while, instead of immediately after locking.

[Alberto Salvia Novella (es20490446e)]

It's a usability issue that doesn't limit the functionality of a core package.