** Description changed: On my Dell Latitude E5520 (Sandy Bridge) a reboot always hangs while shutting down. If I just shutdown the machine it works fine. This happens with Precise 64 bit (x64) version: I used a daily build dated 16th april and applied all updates. The previous (Beta2) version was showing the same issue, the 16th april build is showing the same issue, before and after updates. I also installed a 32 bit (x86) version on another partion and it does work fine! So this bug is affecting 64 bit version only! Upstream kernels I tested (3.2.15, 3.3, 3.4) do not fix this. WORKAROUND: reboot=pci + (for details on how to apply this workaround, see post #25 below) --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu5 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu64 1745 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xd5440000 irq 47' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:111d76e7,1028049a,00100102 HDA:80862805,80860101,00100000' Controls : 37 Simple ctrls : 13 DistroRelease: Ubuntu 12.04 HibernationDevice: RESUME=UUID=37f6026f-41f9-4e0d-a7df-609be53a42a9 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120416) MachineType: Dell Inc. Latitude E5520 Package: linux (not installed) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=it_IT.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=8ee772ed-c38d-43ff-b4aa-ceb821d7cde0 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 RelatedPackageVersions: linux-restricted-modules-3.2.0-23-generic N/A linux-backports-modules-3.2.0-23-generic N/A linux-firmware 1.79 SourcePackage: linux StagingDrivers: mei Tags: precise staging precise staging Uname: Linux 3.2.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 11/30/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0KCT5J dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA05:bd11/30/2011:svnDellInc.:pnLatitudeE5520:pvr01:rvnDellInc.:rn0KCT5J:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E5520 dmi.product.version: 01 dmi.sys.vendor: Dell Inc.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/985471 Title: Ubuntu precise (12.04) 64bit hang on reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/985471/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
