Public bug reported: I have a laptop with an external monitor connected. When the monitor is connected, I only use the external monitor. Usually, when I unplug the monitor, the screen switches automatically, i.e. the builtin screen turns on; when I replug the external monitor, the builtin screen turns off an the external monitor turns on.
A few minutes ago I unplugged the external monitor, and the builtin screen became all white. I could see the mouse cursor on a white background and nothing else. The mouse cursor moved smoothly, but I could'nt do anything. Keystrokes such as tab, atl+tab, ctrl+alt+T (to open a terminal), Ctrl+Super+D, and the like, did absolutely nothing (or they do what they are supposed to do but I couldn't see it because the screen remained white. Replugging the monitor didn't fix the issue. When I plugged the monitor, the builtin screen would turn off, the external monitor would turn on but I could only see a white rectangle (probably of the same size as the laptop built in screen) on a black background, and the mouse cursor. Switching between virtual terminals (i.e. Ctrl+Alt+F1 and Ctrl+Alt+F7) worked, but wouldn't fix the issue. I had no other option than reboot (which I had to do from the F1 virtual terminal), obviously losing all my unsaved work because of such a stupid bug, when probably all programs were running fine but invisibly. Please tell me what can be done to force a "wake up" of the screen as a workaround so next time this happens at least I don't have to reboot and lose all my data. I think this is a REGRESSION, or at least I had never, ever seen this before in years of using ubuntu. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-33.48-generic 3.8.13.11 Uname: Linux 3.8.0-33-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu8.5 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 Date: Fri Nov 29 21:46:27 2013 DistUpgraded: Fresh install DistroCodename: raring DistroVariant: ubuntu DkmsStatus: vboxhost, 4.3.2, 3.8.0-32-generic, x86_64: installed vboxhost, 4.3.2, 3.8.0-33-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Device [1025:0647] NVIDIA Corporation GF117M [GeForce 610M/710M / GT 620M/625M/630M/720M] [10de:1140] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] GeForce 710M [1025:0691] InstallationDate: Installed on 2013-10-11 (49 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Acer Aspire V3-571G MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-33-generic root=UUID=5830b30e-69e8-4bb4-8a2b-bc2b43c7414a ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/15/2012 dmi.bios.vendor: Acer dmi.bios.version: V2.07 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: VA50_HC_CR dmi.board.vendor: Acer dmi.board.version: Type2 - Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V2.07 dmi.modalias: dmi:bvnAcer:bvrV2.07:bd10/15/2012:svnAcer:pnAspireV3-571G:pvrV2.07:rvnAcer:rnVA50_HC_CR:rvrType2-BoardVersion:cvnAcer:ct10:cvrV2.07: dmi.product.name: Aspire V3-571G dmi.product.version: V2.07 dmi.sys.vendor: Acer version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.43-0ubuntu1.1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.7-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.7-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.3 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 xserver.bootTime: Fri Nov 29 21:44:54 2013 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.13.3-0ubuntu6.2 xserver.video_driver: intel ** Affects: xorg (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug compiz-0.9 raring ubuntu ** Changed in: xorg (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1256425 Title: whole screen became blank white - no recovery possible - after unplugging and replugging external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1256425/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp