I am currently running 13.04 and the same problem is still present. It's been with me since 12.04
But now I have discovered a pattern to these freezes: My power cord is always unplugged when Ubuntu freezes. I have a usage pattern that might have an impact: Whenever the screen saver is starting (the desktop is fading out), I push shift or move my mouse to avoid having to write the password. I know, it's odd behavior since I could just prolong the timeout. Clearly this has to do with power management, anyway. -- 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/585765 Title: [HP ProBook 6440b] Ubuntu 10.04 random freezes Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Incomplete Status in “xorg-server” package in Ubuntu: Invalid Bug description: Hello, on my new laptop, a HP ProBook 6440b (with Core i5 and a plain Intel Chipset, 4GB RAM) I get randomly freezes of the whole system. I can't reproduce that, what means I don't know a aplication or usage of the system making it freeze. sometimes I have uptimes of a day, without freeze and sometimes it freezes right after booting the system. I found out, that sometimes the MagicSysRQ (R-E-I-S-U-B) works and let me shut down the system, sometimes not. I don't know what makes that difference. In the system log I can't find any unusual entries. But I foun that the system log is still runing, so shuting down the wifi with the notebooks hardware switch for example is logged. Also the Wifi network connection to my router is not interrupted. ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: linux-image-2.6.32-22-generic 2.6.32-22.33 Regression: No Reproducible: No ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2 Uname: Linux 2.6.32-22-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: florian 1689 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xd4900000 irq 17' Mixer name : 'Intel G45 DEVIBX' Components : 'HDA:111d7603,103c1722,00100202 HDA:11c11040,103c3066,00100200 HDA:80862804,80860101,00100000' Controls : 23 Simple ctrls : 14 Date: Wed May 26 11:03:07 2010 EcryptfsInUse: Yes Frequency: Once a day. HibernationDevice: RESUME=UUID=24088f3d-7be1-4efd-a05a-d1fac42086df InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) MachineType: Hewlett-Packard HP ProBook 6440b ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=ac1bccdd-e231-45c3-bfde-991ae9549f0f ro quiet splash ProcEnviron: LANG=de_DE.utf8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.34 SourcePackage: linux dmi.bios.date: 01/27/2010 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68CDD Ver. F.04 dmi.board.name: 1722 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 29.2B dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68CDDVer.F.04:bd01/27/2010:svnHewlett-Packard:pnHPProBook6440b:pvr:rvnHewlett-Packard:rn1722:rvrKBCVersion29.2B:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 6440b dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/585765/+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