Paolo Amoroso, as per http://www.asus.com/Motherboards/P7P55M/#support_Download_8 an update is available for your BIOS (1101). If you update to this, does it change anything?
If not, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date Thank you for your understanding. ** Tags added: bios-outdated-1101 needs-upstream-testing regression- release ** Changed in: linux (Ubuntu) Status: Confirmed =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/1176513 Title: Shutdown doesn’t turn the PC off Status in “linux” package in Ubuntu: Incomplete Bug description: 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. Issuing a shutdown or reboot from a shell with the "sudo shutdown -h now" or "sudo shutdown -r now" command seems to consistently complete the procedure and work correctly. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176513/+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