Public bug reported: I've been using an external screen, (as an extended desktop). When I travel home from the office, I turn it off (in Gnome Display manager, so that only the laptop's primary screen is active), physically disconnect it, and suspend the laptop to travel.
At home when resuming without an external screen, the Laptop screen doesn't come back on, though plugging an external monitor to VGA1 reveals a part of the extended desktop. It seems that X is still seeing the primary LVDS1 screen (attaching a projector seems to show only the extended desktop, toolbars menus and programs only appear on the hidden primary screen). Sometimes the same issue also affects the laptop from a clean boot (occasionally I have no screen, though the machine appears to be booting). Doing a hard reboot once or twice triggers the screen to come back on. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: xorg 1:7.7+1ubuntu5 ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3 Uname: Linux 3.11.0-11-generic i686 ApportVersion: 2.12.5-0ubuntu1 Architecture: i386 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Thu Oct 3 00:44:13 2013 DistUpgraded: Fresh install DistroCodename: saucy DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.16, 3.11.0-031100-generic, i686: installed virtualbox, 4.2.16, 3.11.0-11-generic, i686: installed virtualbox, 4.2.16, 3.11.0-8-generic, i686: installed virtualbox, 4.2.16, 3.11.0-9-generic, i686: installed ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Toshiba America Info Systems Device [1179:000c] Subsystem: Toshiba America Info Systems Device [1179:000c] InstallationDate: Installed on 2013-08-15 (48 days ago) InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Alpha i386 (20130626) MachineType: TOSHIBA PORTEGE R600 MarkForUpload: True ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-11-generic root=/dev/mapper/ubuntu--gnome--vg-root ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) XorgConf: Section "Device" Identifier "intel" Driver "intel" Option "AccelMethod" "uxa" EndSection dmi.bios.date: 10/23/2008 dmi.bios.vendor: TOSHIBA dmi.bios.version: Version 1.50 dmi.board.asset.tag: 0000000000 dmi.board.name: Portable PC dmi.board.vendor: TOSHIBA dmi.board.version: Version A0 dmi.chassis.asset.tag: 0000000000 dmi.chassis.type: 10 dmi.chassis.vendor: TOSHIBA dmi.chassis.version: Version 1.0 dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.50:bd10/23/2008:svnTOSHIBA:pnPORTEGER600:pvrPPR61E-00Q00CEN:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0: dmi.product.name: PORTEGE R600 dmi.product.version: PPR61E-00Q00CEN dmi.sys.vendor: TOSHIBA version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.46+git20130910.58d00888-0ubuntu0sarvatt version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.0~git20130729+9.2.9b8ad643-0ubuntu0sarvatt version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.0~git20130729+9.2.9b8ad643-0ubuntu0sarvatt version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901+git20130808+server-1.14-branch.bc41226f-0ubuntu0ricotz version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.99~git20130816.d0323622-0ubuntu0smartboyhw version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.15+git20130821.f57ce6ef-0ubuntu0sarvatt version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9+git20130730.300c5a32-0ubuntu0sarvatt xserver.bootTime: Wed Oct 2 22:26:32 2013 xserver.configfile: /etc/X11/xorg.conf xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: Output DVI1 LVDS1 VGA1 xserver.version: 2:1.14.2.901+git20130808+server-1.14-branch.bc41226f-0ubuntu0ricotz xserver.video_driver: intel ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 saucy third-party-packages ubuntu -- 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/1234450 Title: Laptop Screen doesn't return after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1234450/+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