This was a fresh install of 15.04, I haven't tried earlier releases so I don't know.
-- 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/1463422 Title: [Lenovo IdeaCentre A740] Doesn't poweroff on shutdown Status in linux package in Ubuntu: Incomplete Bug description: With my Haswell based Lenovo IdeaCentre A740, if I do "systemctl poweroff" or use any GUI to try to shut down, it gets to the stage of: [ OK ] Reached target Shutdown reboot: System halted but just sits there unresponsive, and does not actually power down. Similarly, if I try running "fwts -P", the hibernate test seems like it crashes the computer (screen is on but unresponsive), then if I click the power button twice, it resumes from hibernation just fine. If I try to reboot, it's almost the same, except the display shows weird psychedelic lines and colours, but everything is unresponsive and I have to click (and this time *hold* not just simple click) the power button. I can reboot fine from GRUB with ctrl+alt+delete. I've kept the Windows partition that came with the computer, that also powers down and reboots fine. If I click the power button while Ubuntu is started, it powers off immediately. I originally asked a question at https://askubuntu.com/questions/632591/system-does-not-power-off-on- poweroff-just-halts but I don't think it has an answer since this seems more likely to be a kernel bug. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-18-generic 3.19.0-18.18 ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6 Uname: Linux 3.19.0-18-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: kiwibird 1481 F.... pulseaudio CurrentDesktop: XFCE Date: Tue Jun 9 15:41:05 2015 HibernationDevice: RESUME=UUID=dc4226ca-3ebe-4611-95ac-c1a0ccbb7d7a InstallationDate: Installed on 2015-06-04 (5 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) MachineType: LENOVO F0AM ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic.efi.signed root=UUID=91533e8a-b5ca-4447-8c4a-b5bb2d095238 ro noprompt persistent RelatedPackageVersions: linux-restricted-modules-3.19.0-18-generic N/A linux-backports-modules-3.19.0-18-generic N/A linux-firmware 1.143.1 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux StagingDrivers: r8723au UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/30/2014 dmi.bios.vendor: LENOVO dmi.bios.version: O00KT19AUS dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900058 STD dmi.chassis.type: 13 dmi.chassis.vendor: LENOVO dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnLENOVO:bvrO00KT19AUS:bd09/30/2014:svnLENOVO:pnF0AM:pvrLenovoA740:rvnLENOVO:rnINVALID:rvr31900058STD:cvnLENOVO:ct13:cvrChassisVersion: dmi.product.name: F0AM dmi.product.version: Lenovo A740 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1463422/+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