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[Andy Whitcroft <apw@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
       Status: Confirmed => In Progress

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Andy Whitcroft (apw)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Critical

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https://bugs.launchpad.net/bugs/1203211

Title:
  Modprobe doesn't recognize any parameters on 3.10.0-4

Status in “gdm” package in Ubuntu:
  Invalid
Status in “linux” package in Ubuntu:
  In Progress

Bug description:
  After updating today to kernel 3.10.0-4 on Ubuntu GNOME 13.10 (Macbook
  Pro 8,2), I am unable to boot graphically. Recovery mode boot works
  fine. When attempting to boot using integrated graphics, the syslog
  gets spammed with this sequence of errors over and over:

  Jul 19 19:07:09 polarimetric-MacBookPro acpid: 1 client rule loaded
  Jul 19 19:07:09 polarimetric-MacBookPro kernel: [   26.475546] i915: Unknown parameter `modeset'
  Jul 19 19:07:09 polarimetric-MacBookPro gdm-simple-slave[1426]: Child process 1432 was already dead.
  Jul 19 19:07:09 polarimetric-MacBookPro gdm-simple-slave[1426]: GLib-GObject: g_object_ref: assertion 'object->ref_count > 0' failed
  Jul 19 19:07:09 polarimetric-MacBookPro gdm-simple-slave[1426]: GLib-GObject: g_object_unref: assertion 'object->ref_count > 0' failed
  Jul 19 19:07:09 polarimetric-MacBookPro gdm[1189]: GdmDisplay: display lasted 0.096139 seconds
  Jul 19 19:07:09 polarimetric-MacBookPro gdm[1189]: GdmDisplay: display lasted 0.097622 seconds
  Jul 19 19:07:09 polarimetric-MacBookPro acpid: client 1432[0:0] has disconnected

  This error only occurs if modprobe parameters are passed at boot, so
  the problem appears to be with modprobe. All module parameters are
  said to be invalid. After boot, attempting to insert a module results
  in the same error.

  EDIT: Please ignore the version string in the below information; I'm
  reporting this bug from 3.10.0-3 but it only affects 3.10.0-4.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.10.0-3-generic 3.10.0-3.12
  ProcVersionSignature: Ubuntu 3.10.0-3.12-generic 3.10.1
  Uname: Linux 3.10.0-3-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.11-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  polarimetric   1862 F.... pulseaudio
  Date: Fri Jul 19 19:35:57 2013
  HibernationDevice: RESUME=UUID=8b32a68d-d883-4492-8fa1-a2cf30529ec6
  InstallationDate: Installed on 2013-06-06 (43 days ago)
  InstallationMedia: Ubuntu-GNOME 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Apple Inc. MacBookPro8,2
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   0 EFI VGA
   1 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.10.0-3-generic root=UUID=070a2baf-a3a7-4034-aeaf-419e7b9df4f7 ro quiet splash i915.modeset=1 i915.lvds_channel_mode=2 i915.lvds_use_ssc=0 intel_pstate=enable vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.10.0-3-generic N/A
   linux-backports-modules-3.10.0-3-generic  N/A
   linux-firmware                            1.112
  SourcePackage: linux
  UpgradeStatus: Upgraded to saucy on 2013-06-28 (21 days ago)
  dmi.bios.date: 01/24/12
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP81.88Z.0047.B27.1201241646
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-94245A3940C91C80
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro8,2
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-94245A3940C91C80
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B27.1201241646:bd01/24/12:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80:
  dmi.product.name: MacBookPro8,2
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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