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[Stephen Rees-Carter <stephen@xxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 903558 ***
    https://bugs.launchpad.net/bugs/903558

** This bug has been marked a duplicate of bug 903558
   [Lenovo ThinkPad L520] Unable to boot 12.04 without 'noapic' flag enabled in GRUB

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https://bugs.launchpad.net/bugs/1050900

Title:
  Unable to boot without 'noapic' boot flag

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  When I try and boot 12.10 from a live CD without any tweaks, it
  crashes on a black screen and requires a hard-reset. The only way to
  get around it is to enable the 'noapic' boot flag.

  This problem has been present for the past couple of releases, and it'd be great if it actually got fixed. I've reported it before, but I've made a new bug report now to provide updated dumps etc.
  It's worth noting that at one point it was actually fixed in the mainline kernels, see comment #7 on Bug #903558.
  I also had some success with a custom kernel config file someone provided me, but I lack the skills to identify the solution from that.

  I'd love to get some help with this bug. Please.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-14-generic 3.5.0-14.17
  ProcVersionSignature: Ubuntu 3.5.0-14.17-generic 3.5.3
  Uname: Linux 3.5.0-14-generic x86_64
  AcpiTables: Error: command ['pkexec', '/usr/share/apport/dump_acpi_tables.py'] failed with exit code 127: Error executing /usr/share/apport/dump_acpi_tables.py: Permission denied
  ApportVersion: 2.5.1-0ubuntu7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     3456 F.... pulseaudio
  CasperVersion: 1.323
  Date: Fri Sep 14 12:14:50 2012
  LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120914)
  MachineType: LENOVO 7859CTO
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash --  noapic
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-14-generic N/A
   linux-backports-modules-3.5.0-14-generic  N/A
   linux-firmware                            1.91
  SourcePackage: linux
  StagingDrivers: rts_pstor
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/04/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8GET38WW (1.15 )
  dmi.board.name: 7859CTO
  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:pn7859CTO:pvrThinkPadL520:rvnLENOVO:rn7859CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7859CTO
  dmi.product.version: ThinkPad L520
  dmi.sys.vendor: LENOVO

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