Public bug reported: This is a regression in the 3.2 kernel that I already reported upstream :
http://lists.freedesktop.org/archives/intel-gfx/2012-January/014316.html A fix was found and tested, integrated into linux master (commit 7885d2052bd94395e337709cfba093a41f273ff1), it would be nice to have this backported to the Ubuntu kernel package else the LTS release will be unusable on this laptop. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-12-generic 3.2.0-12.21 ProcVersionSignature: Ubuntu 3.2.0-12.21-hostnameric 3.2.2 Uname: Linux 3.2.0-12-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: aplay: device_list:242: no soundcards found... ApportVersion: 1.91-0ubuntu1 Architecture: amd64 ArecordDevices: arecord: device_list:242: no soundcards found... AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D3', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D8p', '/dev/snd/by-path', '/dev/snd/controlC29', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Wed Feb 1 18:00:52 2012 HibernationDevice: RESUME=UUID=ccbe10cf-22a0-4681-9359-e62b7c7d15f9 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1) MachineType: LENOVO 78595AG ProcEnviron: LANGUAGE=en_US:en LANG=en_US.UTF-8 SHELL=/bin/zsh ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-12-hostnameric root=UUID=01f7e6be-9fda-43b1-803e-da337f6d0a03 ro quiet splash vt.handoff=7 PulseSinks: Error: command ['pacmd', 'list-sinks'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. PulseSources: Error: command ['pacmd', 'list-sources'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.2.0-12-generic N/A linux-backports-modules-3.2.0-12-generic N/A linux-firmware 1.68 SourcePackage: linux StagingDrivers: rts_pstor mei UpgradeStatus: Upgraded to precise on 2011-08-10 (175 days ago) dmi.bios.date: 11/04/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8GET38WW (1.15 ) dmi.board.name: 78595AG 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:bvr8GET38WW(1.15):bd11/04/2011:svnLENOVO:pn78595AG:pvrThinkPadL520:rvnLENOVO:rn78595AG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 78595AG dmi.product.version: ThinkPad L520 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise staging -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/924989 Title: Black screen at boot on Thinkpad L520 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/924989/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
