Public bug reported: Screenshot attached - generally after docking I experience the strange garbled top-half of my screen on both heads untill I manage to run the display manager, at which point either:
(a) things just start working as expected (b) compiz/gnome-power-manage/some-other-critical-thing crashes or (c) the screen goes mostly black with a ~1px border of flashing bright colorful pixels on the left/top edges and the computer becomes unusable and I have to hard-restart. I *know* I've experienced this with the display-port connector on my dock, and I *believe* it's happened via the built-in VGA on my X201, but I haven't tried that since updating. The 1px-border thing also happens often when resetting the display properties some time after undocking. That use case goes something like this: * Undock, walk to conference room * realize I can't find windows that are on the "invisible" head that my laptop still has configured. * open display properties * screen goes into the broken state with ~1px of colorful flashing pixels and I have to restart. This is also not consistently reproducible as far as I can tell. It's an expensive thing to experience and I haven't had time to try and induce it. This is on a recently-updated Ubuntu 11.04, with nothing custom wrt. the OS/X (as far as I can recall). I was directed to create this bug during discussions on the closed issue here: https://bugs.launchpad.net/bugs/753971 The fix(es?) for #753971 did not resolve this problem. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: unity 3.8.16-0ubuntu1~natty1 ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7 Uname: Linux 2.6.38-10-generic x86_64 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell] CompositorRunning: compiz Date: Fri Jul 22 09:46:48 2011 DistUpgraded: Fresh install DistroCodename: natty DistroVariant: ubuntu DkmsStatus: virtualbox-ose, 4.0.4, 2.6.38-10-generic, x86_64: installed virtualbox-ose, 4.0.4, 2.6.38-8-generic, x86_64: installed GraphicsCard: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:215a] InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) InstallationMedia__: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) Lsusb: Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 3249CTO ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=ce9fb930-bf9b-4295-aa25-da32aa65ac69 ro quiet splash vt.handoff=7 ProcVersionSignature_: Ubuntu 2.6.38-10.46-generic 2.6.38.7 ProcVersionSignature__: Ubuntu 2.6.38-10.46-generic 2.6.38.7 Renderer: Unknown SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/07/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET46WW (1.16 ) dmi.board.name: 3249CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6QET46WW(1.16):bd06/07/2010:svnLENOVO:pn3249CTO:pvrThinkPadX201:rvnLENOVO:rn3249CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3249CTO dmi.product.version: ThinkPad X201 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2 version.ia32-libs: ia32-libs 20090808ubuntu13 version.libdrm2: libdrm2 2.4.23-1ubuntu6 version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2 version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7 ** Affects: ubuntu Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 natty running-unity ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/814721 Title: Docking with external monitor often corrupts screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/814721/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
