Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-rc5-vivid ** Changed in: linux (Ubuntu) Importance: Critical => High ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1434796 Title: kernel hangs Status in linux package in Ubuntu: Incomplete Bug description: booting with options no splash shows garbage at the beginning until the resolution changes. Booting into rescue mode works neither sddm nor lightdem can be started. shutdown is not possible (Hangs after "Hanging Up") ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-9-generic 3.19.0-9.9 ProcVersionSignature: Ubuntu 3.16.0-31.43-generic 3.16.7-ckt5 Uname: Linux 3.16.0-31-generic x86_64 ApportVersion: 2.16.2-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jott 3321 F.... pulseaudio CurrentDesktop: KDE Date: Sat Mar 21 11:14:19 2015 HibernationDevice: RESUME=UUID=c79bd9d4-ded9-43e5-a7e9-d20c0306f05d MachineType: Acer Aspire E3-112 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic root=UUID=d1602f47-e8a7-4a27-8243-cdf4e5101413 ro acpi_osi=Linux RelatedPackageVersions: linux-restricted-modules-3.16.0-31-generic N/A linux-backports-modules-3.16.0-31-generic N/A linux-firmware 1.143 SourcePackage: linux UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/20/2014 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V1.08 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: R2 dmi.board.vendor: Acer dmi.board.version: Type2 - A01 Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.08:bd08/20/2014:svnAcer:pnAspireE3-112:pvrV1.08:rvnAcer:rnR2:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion: dmi.product.name: Aspire E3-112 dmi.product.version: V1.08 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1434796/+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
