I'm adding the security tag for this because the it affects the lock screen as well. The contens of the screen at the time it was locked can be seen from the lock screen.
** Description changed: Since today's round of updates, all of my contextual menus become briefly visible when they're invoked, then disappear, then reappear on events (the selection is changed, etc.) then disappear again. Curiously, this issue has also affected modal dialogues, like the root password authorization for apport. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: unity 5.10.0-0ubuntu5 Uname: Linux 3.3.0-030300-generic x86_64 .tmp.unity.support.test.0: - + ApportVersion: 2.0.1-0ubuntu4 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: compiz Date: Tue Apr 17 22:22:50 2012 DistUpgraded: 2012-03-09 02:04:14,603 DEBUG enabling apt cron job DistroCodename: precise DistroVariant: ubuntu DkmsStatus: - vboxguest, 4.1.12, 3.3.0-030300-generic, x86_64: installed - vboxhost, 4.1.10: added - virtualbox-guest, 4.1.12, 3.3.0-030300-generic, x86_64: installed (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!) + vboxguest, 4.1.12, 3.3.0-030300-generic, x86_64: installed + vboxhost, 4.1.10: added + virtualbox-guest, 4.1.12, 3.3.0-030300-generic, x86_64: installed (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!) GraphicsCard: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef] (prog-if 00 [VGA controller]) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) Lsusb: - Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub - Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet + Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub + Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet MachineType: innotek GmbH VirtualBox ProcEnviron: - TERM=xterm - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.3.0-030300-generic root=UUID=e9fc079d-1344-41af-9e74-b855a61d3def ro quiet splash vt.handoff=7 Renderer: Software SourcePackage: unity UpgradeStatus: Upgraded to precise on 2012-03-09 (39 days ago) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH version.compiz: compiz 1:0.9.7.6-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 ** Tags added: security -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/984518 Title: Contextual menus flicker and disappear To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/984518/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs