Hi Chris, thanks for the advice. All newer kernels have worked fine. I'm now running 3.8.0-26 without issue.
I'm not sure what the appropriate status/resolution is for "no longer relevant" -- this was apparently just a glitch with a single kernel version that no longer affects me. I'd prefer to just close it and move on. -- 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/1169959 Title: [Lenovo ThinkPad T520 4240] won't boot with 3.5.0-27 Status in “linux” package in Ubuntu: Incomplete Bug description: After updating to kernel linux-image-3.5.0-27-generic a week or two ago, my T520 4940-49U won't boot. After 1-2 seconds, the screen goes blank (dark - backlight off) and the laptop stops responding. Alt-F2, etc does not cause any change. Alt-SysRq-B will reboot, but nothing else has any effect. The hard disk light is not on/blinking. Removing the "quiet splash $vt_handoff" options from the grub boot options does NOT help; also adding "nofb" does NOT help; also adding "init=/bin/bash" does NOT help. Booting recovery mode for 3.5.0-27 DOES work. Booting 3.5.0-26 in standard (non-recovery mode) DOES work. I'm unable to capture any output from a failed boot, so not sure how to troubleshoot further. Attached data was captured while running 3.5.0-26 (NOT the problem kernel). ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-26-generic 3.5.0-26.42 ProcVersionSignature: Ubuntu 3.5.0-26.42-generic 3.5.7.6 Uname: Linux 3.5.0-26-generic x86_64 ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dschaapveld 2764 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory: 'iw' 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: Wed Apr 17 08:19:50 2013 InstallationDate: Installed on 2012-06-12 (308 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: LENOVO 424049U MarkForUpload: True ProcFB: 0 nouveaufb 1 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-26-generic root=/dev/mapper/VG298-root ro quiet splash SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-11-02 (166 days ago) WifiSyslog: dmi.bios.date: 12/06/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8AET56WW (1.36 ) dmi.board.asset.tag: Not Available dmi.board.name: 424049U 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:bvr8AET56WW(1.36):bd12/06/2011:svnLENOVO:pn424049U:pvrThinkPadT520:rvnLENOVO:rn424049U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 424049U dmi.product.version: ThinkPad T520 dmi.sys.vendor: LENOVO --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: dschaapveld 2764 F.... pulseaudio /dev/snd/controlC0: dschaapveld 2764 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory 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 DistroRelease: Ubuntu 12.10 InstallationDate: Installed on 2012-06-12 (310 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: LENOVO 424049U MarkForUpload: True Package: linux (not installed) ProcFB: 0 nouveaufb 1 inteldrmfb 2 udldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-26-generic root=/dev/mapper/VG298-root ro quiet splash ProcVersionSignature: Ubuntu 3.5.0-26.42-generic 3.5.7.6 Tags: quantal running-unity Uname: Linux 3.5.0-26-generic x86_64 UpgradeStatus: Upgraded to quantal on 2012-11-02 (167 days ago) UserGroups: dialout libvirtd rancid sudo WifiSyslog: dmi.bios.date: 12/06/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8AET56WW (1.36 ) dmi.board.asset.tag: Not Available dmi.board.name: 424049U 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:bvr8AET56WW(1.36):bd12/06/2011:svnLENOVO:pn424049U:pvrThinkPadT520:rvnLENOVO:rn424049U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 424049U dmi.product.version: ThinkPad T520 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1169959/+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