kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

If this is now fixed in mainline, it might be worth testing the latest
upstream stable 4.4 kernel.  It can be downloaded from:

http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.13-xenial/

If 4.4.13 upstream stable fixes this bug, then the commit will be
applied to Xenial through the normal stable update process.  However, if
it does not fix the bug, the real fix may not have been cc'd to stable.
However, it may have been and just not landed yet.

The other option if this is not fixed in upstream 4.4 stable, is to
perform a "Reverse" bisect to identify the commit that fixes this.

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

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

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

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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https://bugs.launchpad.net/bugs/1575467

Title:
  [Dell Inspiron 3451] WARNING: CPU: 1 PID: 1297 at /build/linux-lts-
  utopic-vy2yyy/linux-lts-
  utopic-3.16.0/drivers/gpu/drm/i915/intel_display.c:1743
  vlv_wait_port_ready+0x126/0x170 [i915]()

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Xenial:
  In Progress

Bug description:
  After upgrading from stock Ubuntu 14.04 to 16.04 my laptop
  consistently freezes up and is unresponsive to keyboard or mouse. The
  only way is to do a hard shutdown. I'm usually in a browser when this
  happens, and often watching a video or two. It seems to happen more
  often in Google Chrome than Firefox, but it happens with both. It has
  happened at least once with no videos loaded. I haven’t observed it
  freeze / hang when I’m not in a browser, but that's mainly what i use
  my laptop for, so that's where most of my time is spent.

  Call trace:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575467/+attachment/4648682/+files/kern.log.2.gz

  ---
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  andrew     1949 F.... pulseaudio
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=e8aaee7c-d956-4519-94f0-cf7aad745020
  InstallationDate: Installed on 2015-08-08 (263 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: Dell Inc. Inspiron 3451
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=en_US
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=d01f07be-c906-4024-8eef-a58ba3935298 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  Tags:  xenial
  Uname: Linux 4.4.0-21-generic x86_64
  UpgradeStatus: Upgraded to xenial on 2016-04-22 (4 days ago)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 12/05/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.name: 0H4MK6
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd12/05/2014:svnDellInc.:pnInspiron3451:pvrA00:rvnDellInc.:rn0H4MK6:rvrA00:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: Inspiron 3451
  dmi.product.version: A00
  dmi.sys.vendor: Dell Inc.

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