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** Changed in: linux (Ubuntu) Status: Incomplete => Won't Fix -- 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/1007138 Title: 10de:1056 [Lenovo ThinkPad T420s] Initializing discrete graphics driver nouveau hangs system Status in linux package in Ubuntu: Won't Fix Bug description: System hangs when loading nouveau (NVS 4200m) driver without pci=noacpi 9 out of 10 times. System is Lenovo T420s (7174P4G) set to "discrete graphics" (optimus disabled) in bios. (Need this to work with large external monitor). ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-24-generic 3.2.0-24.39 ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 Uname: Linux 3.2.0-24-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu8 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: gbs4 2316 F.... pulseaudio /dev/snd/controlC0: gbs4 2316 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xf4320000 irq 26' Mixer name : 'Conexant CX20590' Components : 'HDA:14f1506e,17aa21d2,00100000' Controls : 8 Simple ctrls : 5 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xf3000000 irq 11' Mixer name : 'Nvidia GPU 1c HDMI/DP' Components : 'HDA:10de001c,17aa21d2,00100100' Controls : 18 Simple ctrls : 3 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown' Mixer name : 'ThinkPad EC (unknown)' Components : '' Controls : 1 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Date: Thu May 31 23:05:04 2012 HibernationDevice: RESUME=UUID=18b3caac-9a0d-4a39-b658-df34a8a7f1b1 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: LENOVO 4174P4G ProcEnviron: LANGUAGE=en_GB:en TERM=xterm LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-24-generic root=/dev/mapper/u_sys-lv_root ro gfxpayload=text rdblacklist=nouveau acpi=noirq PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.2.0-24-generic N/A linux-backports-modules-3.2.0-24-generic N/A linux-firmware 1.79 SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/29/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8CET51WW (1.31 ) dmi.board.asset.tag: Not Available dmi.board.name: 4174P4G 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:bvr8CET51WW(1.31):bd11/29/2011:svnLENOVO:pn4174P4G:pvrThinkPadT420s:rvnLENOVO:rn4174P4G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4174P4G dmi.product.version: ThinkPad T420s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007138/+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