Public bug reported: Shutting down the system from Unity by clicking the gear icon at the top right of the screen, selecting the shutdown option, and then clicking the shutdown icon at the center of the screen, doesn’t turn the PC off.
The shutdown process is initiated and the screen with the Ubuntu logo at the center and a solid background color appears, but the PC remains on. I have to manually operate the PC's power switch to turn it off. Selecting the restart option rather than a shutdown doesn’t restart the PC either, same behavior. Until upgrading from Ubuntu 12.10 to 13.04 on the same hardware a couple of days ago, this feature worked correctly. The problem might be related to some frequent instability issues I reported in bug #1176061: Random system freezes https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176061 My PC has an Intel Core i5 CPU 760 @ 2.80GHz × 4 with 8GB of RAM, a 450GB hard disk, and an Nvidia Quadro 400 graphics card. I'm running 64 bit Ubuntu 13.04 with the Nouveau drivers. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-19-generic 3.8.0-19.30 ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8 Uname: Linux 3.8.0-19-generic x86_64 ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: paolo 2062 F.... pulseaudio /dev/snd/controlC0: paolo 2062 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Date: Sun May 5 11:31:22 2013 HibernationDevice: RESUME=UUID=bf3a6625-a77d-4873-8881-486211c8bef1 InstallationDate: Installed on 2013-02-16 (77 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: System manufacturer System Product Name MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=it_IT.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=e97b7152-ea93-487a-a54b-c54346a2f645 ro quiet splash RelatedPackageVersions: linux-restricted-modules-3.8.0-19-generic N/A linux-backports-modules-3.8.0-19-generic N/A linux-firmware 1.106 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to raring on 2013-05-03 (1 days ago) dmi.bios.date: 07/09/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0903 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P7P55-M dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0903:bd07/09/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7P55-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug raring -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1176513 Title: Shutdown doesn’t turn the PC off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176513/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs