Paul White, thank you for reporting this and helping make Ubuntu better. As per http://www.toshiba.co.uk/innovation/download_drivers_bios.jsp?service=UK an update to your computer's buggy, insecure, and outdated BIOS is available (5.10). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?
For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. Also, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible: 1) Please provide the output of the following terminal command (not perform an apport-collect): sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2) Please make a comment specifically advising on if there was an improvement or not. 3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-5.10 ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: New => 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/1562391 Title: Live session hangs at poweroff or reboot Status in linux package in Ubuntu: Incomplete Bug description: Both 32 and 64-bit versions of Lubuntu daily ISO do not poweoff or reboot when requested so Power button must be used to terminate session. This may be similar to bug #1552985 but a new bug reported at the request of Christopher Penalver. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-15-generic 4.4.0-15.31 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic i686 ApportVersion: 2.20-0ubuntu3 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lubuntu 1614 F.... lxpanel CasperVersion: 1.369 CurrentDesktop: LXDE Date: Sat Mar 26 20:25:28 2016 LiveMediaBuild: Lubuntu 16.04 LTS "Xenial Xerus" - Beta i386 (20160326) MachineType: TOSHIBA SATELLITE C50-B ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash --- keyboard-configuration/layoutcode=gb RelatedPackageVersions: linux-restricted-modules-4.4.0-15-generic N/A linux-backports-modules-4.4.0-15-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/25/2014 dmi.bios.vendor: TOSHIBA dmi.bios.version: 1.40 dmi.board.asset.tag: * dmi.board.name: ZBWAA dmi.board.vendor: TOSHIBA dmi.board.version: 1.00 dmi.chassis.asset.tag: * dmi.chassis.type: 10 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnTOSHIBA:bvr1.40:bd07/25/2014:svnTOSHIBA:pnSATELLITEC50-B:pvrPSCMLE-04901DEN:rvnTOSHIBA:rnZBWAA:rvr1.00:cvnToBeFilledByO.E.M.:ct10:cvrToBeFilledByO.E.M.: dmi.product.name: SATELLITE C50-B dmi.product.version: PSCMLE-04901DEN dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1562391/+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