apport information ** Tags added: apport-collected ubuntu
** Description changed: Occasionally, the internal laptop display goes black for a few seconds, then comes back to life. The external display stays on. It looks as if power management were kicking in by error but affecting only the internal display. When I’m working with the external display, I need to move the mouse into the area managed by the internal display to wake it up again; else it seems to remain black (though I haven’t tested that behavior thoroughly). Most tests with the external display were made with the port replicator and an external display plugged into one of the DP ports via a DP–DVI adapter. I cannot tell for sure what the behavior is with the external display plugged directly into the laptop. The hard disk was originally installed with Ubuntu MATE 14.10 in a HP EliteBook 6930p, upgraded to 15.04, 15.10 and eventually 16.04 and finally moved to the EliteBook 840 G1. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-93.116-generic 4.4.79 Uname: Linux 4.4.0-93-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 CurrentDesktop: MATE Date: Fri Sep 8 00:53:24 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2014-12-09 (1002 days ago) InstallationMedia: Ubuntu MATE 14.10 "Utopic Unicorn" - amd64 (20141023) SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) + --- + ApportVersion: 2.20.1-0ubuntu2.15 + Architecture: amd64 + CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' + CompositorRunning: None + CurrentDesktop: MATE + DistUpgraded: Fresh install + DistroCodename: xenial + DistroRelease: Ubuntu 16.04 + DistroVariant: ubuntu + EcryptfsInUse: Yes + ExtraDebuggingInterest: Yes, if not too technical + GraphicsCard: + Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller]) + Subsystem: Hewlett-Packard Company Haswell-ULT Integrated Graphics Controller [103c:198f] + InstallationDate: Installed on 2014-12-09 (1158 days ago) + InstallationMedia: Ubuntu MATE 14.10 "Utopic Unicorn" - amd64 (20141023) + MachineType: Hewlett-Packard HP EliteBook 840 G1 + Package: xorg 1:7.7+13ubuntu3 + PackageArchitecture: amd64 + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-112-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98 + Tags: xenial ubuntu + Uname: Linux 4.4.0-112-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 05/23/2016 + dmi.bios.vendor: Hewlett-Packard + dmi.bios.version: L71 Ver. 01.37 + dmi.board.name: 198F + dmi.board.vendor: Hewlett-Packard + dmi.board.version: KBC Version 15.59 + dmi.chassis.asset.tag: CNU407CM0V + dmi.chassis.type: 10 + dmi.chassis.vendor: Hewlett-Packard + dmi.modalias: dmi:bvnHewlett-Packard:bvrL71Ver.01.37:bd05/23/2016:svnHewlett-Packard:pnHPEliteBook840G1:pvrA3009DD10203:rvnHewlett-Packard:rn198F:rvrKBCVersion15.59:cvnHewlett-Packard:ct10:cvr: + dmi.product.name: HP EliteBook 840 G1 + dmi.product.version: A3009DD10203 + dmi.sys.vendor: Hewlett-Packard + version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 + version.ia32-libs: ia32-libs N/A + version.libdrm2: libdrm2 2.4.83-1~16.04.1 + version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu1~16.04.4 + version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A + version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu1~16.04.4 + version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.7 + 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+git20160325-1ubuntu1.2 + version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 ** Attachment added: "BootLog.txt" https://bugs.launchpad.net/bugs/1715749/+attachment/5052596/+files/BootLog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1715749 Title: Intermittent black screen on HP EliteBook 840 G1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1715749/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
