Importance "medium"??? Do you realize the possible consequences of not being able to turn the screen on?
You may suspend with a screen connected, disconnect it, take the laptop away, resume from suspend where you don't have a screen available, and you would be unable to save your work! -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1535452 Title: [15.10 REGRESSION] Builtin laptop display doesn't turn back on when external hdmi monitor is unplugged Status in xorg package in Ubuntu: Confirmed Bug description: I used to have my display settings so that only one external monitor would be used when available, and the laptop's builtin monitor would be disabled. When plugging and unplugging the external monitor (whether in the VGA or HDMI port), monitors would switch automatically, as is obviously expected. After upgrading from 15.04 to 15.10, as per bug #1535436, these settings were lost, and after reboot, the two monitors were both enabled in extended desktop mode (or whatever it's called). So I went to Settings -> Displays (while I had an HDMI monitor connected), and turned off the builtin display. That worked, but when unplugging the HDMI monitor, the builtin one remains turned off despite being the only available monitor. No matter how many times I plug and unplug the external HDMI monitor, the builtin one never turns on (the external one does work). This is a HUGE regression as it may leave you without screen. By plugging a monitor via the VGA port, it works as expected. I'm testing with the same monitors and cables (and computer) as I was using in 15.04 when everything worked fine. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6 Uname: Linux 4.2.0-23-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 340.96 Sun Nov 8 22:33:28 PST 2015 GCC version: gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu2) ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CurrentDesktop: Unity Date: Mon Jan 18 22:18:48 2016 DistUpgraded: 2016-01-18 11:11:01,146 DEBUG enabling apt cron job DistroCodename: wily DistroVariant: ubuntu DkmsStatus: bbswitch, 0.7, 3.19.0-43-generic, x86_64: installed bbswitch, 0.7, 4.2.0-23-generic, x86_64: installed nvidia-340, 340.96, 3.19.0-43-generic, x86_64: installed nvidia-340, 340.96, 4.2.0-23-generic, x86_64: installed vboxhost, 4.3.14: added 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/810M/820M / 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 (829 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Acer Aspire V3-571G ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-23-generic.efi.signed root=UUID=5830b30e-69e8-4bb4-8a2b-bc2b43c7414a ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to wily on 2016-01-18 (0 days ago) 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 1:0.9.12.2+15.10.20151015-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Mon Jan 18 17:01:13 2016 xserver.configfile: /etc/X11/xorg.conf xserver.errors: NVIDIA(0): Failed to initiate mode change. NVIDIA(0): Failed to complete mode change NVIDIA(0): Failed to initiate mode change. NVIDIA(0): Failed to complete mode change xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.17.2-1ubuntu9.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1535452/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
