Update: I take that back, or its reverted: the machine will NOT shut down and, in fact worse than before, after the upgrade there seems to be no way to see the terminal output during shutdown. Pressing ESC during shutdown now gives a blank screen rather than showing what is going wrong.
The machine just keeps showing moving coloured dots on its shutdown screen forever, until I force a power down by holding the power button. -- 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/1573597 Title: Problems with shut down and boot (Lenovo T450s) Status in linux package in Ubuntu: Incomplete Bug description: My Lenovo T450s under Ubuntu 15.10 does not poweroff normally. Instead, it hangs on "Reached target shutdown". (See image) Along the way, I believe there is briefly a full page of "drm:gen8_irq_handler [i915] *ERROR* The master control interrupt lied (SDE)!" messages. If I leave it there for a long time (> 10 minutes?) it does/may actually turn off without me forcing it off, but this makes no difference to the subsequent behaviour. Moreover, if I press Ctrl- Alt-Del fast, many times, I get the "Rebooting immediately" message, but it doesn't. When I try to boot, I experience the following. It requires at least two reboots to be able to log in: On the first boot, the Grub page is skipped, and it hangs on the Ubuntu logo with moving dots. Eventually, I reboot it. The second time (this is all reproducible), it boots but very slowly. It stalls at "britty.service" and eventually gives me a message about dev-disk-by , where it waits for 90 seconds before booting. After that, things proceed to a normal login screen. Behaviour after that is sometimes normal. This is a 1 month-old computer. Chris ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-35-generic 4.2.0-35.40 ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5 Uname: Linux 4.2.0-35-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: cpbl 3380 F.... pulseaudio /dev/snd/controlC0: cpbl 3380 F.... pulseaudio /dev/snd/controlC1: cpbl 3380 F.... pulseaudio CurrentDesktop: Unity Date: Fri Apr 22 08:42:59 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=e5d0a2bb-27cf-494a-849c-1985d165fbd7 InstallationDate: Installed on 2016-02-12 (69 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: LENOVO 20BXCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic.efi.signed root=UUID=ea2fb511-8d62-4b96-bdaa-4b3f7bf79cc6 ro noprompt quiet splash RelatedPackageVersions: linux-restricted-modules-4.2.0-35-generic N/A linux-backports-modules-4.2.0-35-generic N/A linux-firmware 1.149.3 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/06/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET54WW (1.19 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BXCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET54WW(1.19):bd11/06/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BXCTO1WW dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573597/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
