apport information ** Attachment added: "LightdmLog.txt" https://bugs.launchpad.net/bugs/1577162/+attachment/4700779/+files/LightdmLog.txt
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1577162 Title: Screens briefly blacks out at lightdm prompt Status in xorg package in Ubuntu: Incomplete Bug description: When I boot my laptop and get to the lightdm login prompt, the screen blacks out for a fraction of second. This happens each time, only once, and does not prevent logging in. In fact it is not only a display glitch : if I start to type my password before the blackout, the typed characters are lost when normal display resumes. So lightdm might be restarting. This is only mildly annoying, but I am also experiencing other graphical problems which may be or not be related (namely #1568604). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: lightdm 1.18.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-22.38-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: XFCE Date: Sun May 1 14:55:29 2016 InstallationDate: Installed on 2016-04-22 (8 days ago) InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: XFCE DistUpgraded: Fresh install DistroCodename: xenial DistroRelease: Ubuntu 16.04 DistroVariant: ubuntu GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Broadwell-U Integrated Graphics [1028:062e] Subsystem: Dell GM108M [GeForce 840M] [1028:062e] InstallationDate: Installed on 2016-04-22 (82 days ago) InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) LightdmDisplayLog: (II) AIGLX: Suspending AIGLX clients for VT switch (II) AIGLX: Suspending AIGLX clients for VT switch MachineType: Dell Inc. Latitude E7450 NonfreeKernelModules: wl Package: xorg 1:7.7+13ubuntu3 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-30-generic root=UUID=479420cb-def5-46a9-907c-007c03dc04ba ro ProcVersionSignature: Ubuntu 4.4.0-30.49-generic 4.4.13 Tags: third-party-packages xenial possible-manual-nvidia-install ubuntu Uname: Linux 4.4.0-30-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/17/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: A13 dmi.board.name: 0NC6G7 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA13:bd05/17/2016:svnDellInc.:pnLatitudeE7450:pvr:rvnDellInc.:rn0NC6G7:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7450 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1577162/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp