I am experiencing a same/similar issue on a Dell XPS13 Developer Edition 9333 and have seen it with linux-image-3.16.3-031603-generic (mainline) linux-image-3.16.0-24-generic and linux-image-extra-3.16.0-23-generic. I have attempted to test it with linux-image-3.18.0-031800rc2-generic but it will not boot (/dev/disk/by-uuid does not exist, drops to busybox).
Sometimes I am able to switch to the VT with ctrl-alt-F1 and switch back with ctrl-alt-F7, however once this has occurred it happens very frequently until I reboot. I have included a portion of my syslog which may possibly be related to the issue. ** Attachment added: "syslog partial output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1384968/+attachment/4256940/+files/syslog20752.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1384968 Title: Screen goes black at random times Status in “linux” package in Ubuntu: Incomplete Bug description: After upgrading from 14.04 to 14.10 my screen goes black at random times. The sound keeps playing so I know it's still running. The only way I can get the screen back is by pressing the power button, which will show the shutdown selection window and unblackens the screen. Update: it probably has something to do with the graphics drivers because my screen also flashes black during gaming My laptop is a Lenovo ideapad z580 Intel Core i7-3520M integrated graphics 6 gb ram Ubuntu 14.10 64-bit --- ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: vince 2727 F...m pulseaudio /dev/snd/controlC0: vince 2727 F.... pulseaudio /dev/snd/seq: timidity 1561 F.... timidity DistroRelease: Ubuntu 14.10 HibernationDevice: RESUME=UUID=dc29efba-2e6b-4375-b894-d5a0f60cd103 InstallationDate: Installed on 2014-05-09 (167 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO IdeaPad Z580 NonfreeKernelModules: wl Package: linux (not installed) ProcEnviron: LANGUAGE=nl TERM=xterm PATH=(custom, no user) LANG=nl_NL.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-23-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.16.0-23-generic N/A linux-backports-modules-3.16.0-23-generic N/A linux-firmware 1.138 Tags: utopic Uname: Linux 3.16.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: WifiSyslog: _MarkForUpload: True dmi.bios.date: 08/03/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 5FCN35WW dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Lenovo dmi.board.vendor: LENOVO dmi.board.version: Lenovo Z580 dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnLENOVO:bvr5FCN35WW:bd08/03/2012:svnLENOVO:pnIdeaPadZ580:pvrLenovoZ580:rvnLENOVO:rnLenovo:rvrLenovoZ580:cvnIntelCorporation:ct9:cvr0.1: dmi.product.name: IdeaPad Z580 dmi.product.version: Lenovo Z580 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1384968/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
