The fix mentioned in comment #11 is now in upstream v3.13-rc4. Can you test this kernel to confirm if this fixes the bug or not:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc4-trusty/ -- 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/1257338 Title: [Acer Aspire E1-572] Freezes at shutdown screen when attempting to shutdown Status in “linux” package in Ubuntu: Triaged Bug description: I am using Kubuntu, and the screen freezes on shutdown with the kubuntu logo showing. Tried kernel parameters reboot=pci and reboot=bios but didn't change anything. WORKAROUND: Suspend to ram, suspend to disk and rebooting works fine. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-13-generic 3.11.0-13.20 ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6 Uname: Linux 3.11.0-13-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: christian 1853 F.... pulseaudio /dev/snd/controlC0: christian 1853 F.... pulseaudio Date: Tue Dec 3 16:27:24 2013 HibernationDevice: RESUME=UUID=d6cedfb1-95fc-451c-81f6-480008d8ef40 InstallationDate: Installed on 2013-12-01 (2 days ago) InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Acer Aspire E1-572 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-13-generic root=UUID=20d2d081-e8c6-4e7e-9c59-0398d081c3b5 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-13-generic N/A linux-backports-modules-3.11.0-13-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/21/2013 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V2.04 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: EA50_HW dmi.board.vendor: Acer dmi.board.version: V2.04 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.04:bd05/21/2013:svnAcer:pnAspireE1-572:pvrV2.04:rvnAcer:rnEA50_HW:rvrV2.04:cvnAcer:ct10:cvrChassisVersion: dmi.product.name: Aspire E1-572 dmi.product.version: V2.04 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1257338/+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
