prasad patil, at your earliest convenience, could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue.
If testing on your main install would be inconvenient, one may: 1) Install Ubuntu to a different partition and then test this there. 2) Backup, or clone the primary install. If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description: kernel-fixed-upstream kernel-fixed-upstream-X.Y-rcZ Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists. If the mainline kernel does not fix the issue, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-X.Y-rcZ Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream. Once testing of the latest upstream kernel is complete, please mark this report's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Tags removed: bios-outdated-1.46 ** Tags added: latest-bios-1.46 ** Attachment removed: "UdevDb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401472/+files/UdevDb.txt ** Attachment removed: "UdevLog.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401473/+files/UdevLog.txt ** Attachment removed: "RfKill.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401471/+files/RfKill.txt ** Attachment removed: "PulseList.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401470/+files/PulseList.txt ** Attachment removed: "ProcModules.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401469/+files/ProcModules.txt ** Attachment removed: "ProcInterrupts.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401468/+files/ProcInterrupts.txt ** Attachment removed: "ProcEnviron.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401467/+files/ProcEnviron.txt ** Attachment removed: "ProcCpuinfo.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401466/+files/ProcCpuinfo.txt ** Attachment removed: "Lsusb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401465/+files/Lsusb.txt ** Attachment removed: "Lspci.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401464/+files/Lspci.txt ** Attachment removed: "IwConfig.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401463/+files/IwConfig.txt ** Attachment removed: "HookError_source_linux.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401462/+files/HookError_source_linux.txt ** Attachment removed: "Dependencies.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401461/+files/Dependencies.txt ** Attachment removed: "CRDA.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401460/+files/CRDA.txt ** Attachment removed: "AlsaInfo.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4401459/+files/AlsaInfo.txt ** Description changed: Ubuntu 14.04 freezes on Lenovo Thinkpad 420. - ProblemType: Bug - DistroRelease: Ubuntu 14.04 - Package: linux-image-3.13.0-53-generic 3.13.0-53.88 - ProcVersionSignature: Ubuntu 3.13.0-53.88-generic 3.13.11-ckt19 - Uname: Linux 3.13.0-53-generic x86_64 - ApportVersion: 2.14.1-0ubuntu3.10 - Architecture: amd64 - AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: 479153 2639 F.... pulseaudio - CurrentDesktop: Unity - CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied - Date: Thu May 21 12:41:14 2015 - InstallationDate: Installed on 2015-02-04 (105 days ago) - InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) - MachineType: LENOVO 4236PA6 - ProcFB: 0 inteldrmfb - ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-53-generic root=UUID=f76e0417-cd99-44f8-a4e7-f405327f44be ro quiet splash vt.handoff=7 - SourcePackage: linux - UpgradeStatus: No upgrade log present (probably fresh install) - WifiSyslog: - - dmi.bios.date: 03/26/2012 - dmi.bios.vendor: LENOVO - dmi.bios.version: 83ET69WW (1.39 ) - dmi.board.asset.tag: Not Available - dmi.board.name: 4236PA6 - dmi.board.vendor: LENOVO - dmi.board.version: Not Available - dmi.chassis.asset.tag: No Asset Information - dmi.chassis.type: 10 - dmi.chassis.vendor: LENOVO - dmi.chassis.version: Not Available - dmi.modalias: dmi:bvnLENOVO:bvr83ET69WW(1.39):bd03/26/2012:svnLENOVO:pn4236PA6:pvrThinkPadT420:rvnLENOVO:rn4236PA6:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: - dmi.product.name: 4236PA6 - dmi.product.version: ThinkPad T420 - dmi.sys.vendor: LENOVO - --- + --- ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: 479153 4208 F.... pulseaudio - CurrentDesktop: Unity - CurrentDmesg: - Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied - dmesg: write failed: Broken pipe + USER PID ACCESS COMMAND + /dev/snd/controlC0: 479153 4208 F.... pulseaudio DistroRelease: Ubuntu 14.04 + HibernationDevice: RESUME=UUID=5368ef0a-7ec6-40f6-ba2f-37ed9e9e6cb2 InstallationDate: Installed on 2015-02-04 (314 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 4236PA6 Package: linux (not installed) + ProcEnviron: + LANGUAGE=en_IN:en + TERM=xterm + PATH=(custom, no user) + LANG=en_IN + SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-39-generic root=UUID=f76e0417-cd99-44f8-a4e7-f405327f44be ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-39.44~14.04.1-generic 3.19.8-ckt9 + PulseList: + Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied + No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-3.19.0-39-generic N/A + linux-backports-modules-3.19.0-39-generic N/A + linux-firmware 1.127.19 Tags: trusty Uname: Linux 3.19.0-39-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) - UserGroups: bumblebee sudo - WifiSyslog: - + UserGroups: + _MarkForUpload: True dmi.bios.date: 07/05/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 83ET76WW (1.46 ) dmi.board.asset.tag: Not Available dmi.board.name: 4236PA6 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr83ET76WW(1.46):bd07/05/2013:svnLENOVO:pn4236PA6:pvrThinkPadT420:rvnLENOVO:rn4236PA6:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4236PA6 dmi.product.version: ThinkPad T420 dmi.sys.vendor: LENOVO - --- - ApportVersion: 2.14.1-0ubuntu3.19 - Architecture: amd64 - AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: 479153 4208 F.... pulseaudio - DistroRelease: Ubuntu 14.04 - HibernationDevice: RESUME=UUID=5368ef0a-7ec6-40f6-ba2f-37ed9e9e6cb2 - InstallationDate: Installed on 2015-02-04 (314 days ago) - InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) - MachineType: LENOVO 4236PA6 - Package: linux (not installed) - ProcEnviron: - LANGUAGE=en_IN:en - TERM=xterm - PATH=(custom, no user) - LANG=en_IN - SHELL=/bin/bash - ProcFB: 0 inteldrmfb - ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-39-generic root=UUID=f76e0417-cd99-44f8-a4e7-f405327f44be ro quiet splash vt.handoff=7 - ProcVersionSignature: Ubuntu 3.19.0-39.44~14.04.1-generic 3.19.8-ckt9 - PulseList: - Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied - No PulseAudio daemon running, or not running as session daemon. - RelatedPackageVersions: - linux-restricted-modules-3.19.0-39-generic N/A - linux-backports-modules-3.19.0-39-generic N/A - linux-firmware 1.127.19 - Tags: trusty - Uname: Linux 3.19.0-39-generic x86_64 - UpgradeStatus: No upgrade log present (probably fresh install) - UserGroups: - - _MarkForUpload: True - dmi.bios.date: 07/05/2013 - dmi.bios.vendor: LENOVO - dmi.bios.version: 83ET76WW (1.46 ) - dmi.board.asset.tag: Not Available - dmi.board.name: 4236PA6 - dmi.board.vendor: LENOVO - dmi.board.version: Not Available - dmi.chassis.asset.tag: No Asset Information - dmi.chassis.type: 10 - dmi.chassis.vendor: LENOVO - dmi.chassis.version: Not Available - dmi.modalias: dmi:bvnLENOVO:bvr83ET76WW(1.46):bd07/05/2013:svnLENOVO:pn4236PA6:pvrThinkPadT420:rvnLENOVO:rn4236PA6:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: - dmi.product.name: 4236PA6 - dmi.product.version: ThinkPad T420 - dmi.sys.vendor: LENOVO ** Attachment removed: "AlsaInfo.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535414/+files/AlsaInfo.txt ** Attachment removed: "CRDA.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535415/+files/CRDA.txt ** Attachment removed: "HookError_source_linux.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535416/+files/HookError_source_linux.txt ** Attachment removed: "IwConfig.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535417/+files/IwConfig.txt ** Attachment removed: "Lspci.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535418/+files/Lspci.txt ** Attachment removed: "Lsusb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535419/+files/Lsusb.txt ** Attachment removed: "ProcCpuinfo.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535420/+files/ProcCpuinfo.txt ** Attachment removed: "ProcEnviron.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535421/+files/ProcEnviron.txt ** Attachment removed: "ProcInterrupts.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+attachment/4535422/+files/ProcInterrupts.txt ** Changed in: linux (Ubuntu) Importance: Low => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1457350 Title: Random Freezing problem with Ubuntu 14.04 LTS, Lenovo Laptop T420 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457350/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs