kernel-packages team mailing list archive

[Morten Clausen <morten.c@xxxxxxxxxx>]

Maybe I don't get it, but: Is the fix only shutting up the kernel
messages or is this fixing the cause?

I'm expiriencing this messages on a Lenovo T450 (20BX011GE) running
15.10 with 4.2.0-16-generic kernel. I see this messages wether external
monitor is connected or not, although with much higher frequency with
external monitor connected (dp via dock).

It seems like this messages is related to random GDM crashes. I tried to
reproduce this behaviour, but I've got no clue when this is happening so
far. I will try to investigate this further.

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https://bugs.launchpad.net/bugs/1488719

Title:
  dmesg shows "[drm:gen8_irq_handler [i915]] *ERROR* The master control
  interrupt lied (SDE)!"

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On a recent intel NUC using i915 graphics, I get the following errors
  in dmesg:

  [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt
  lied (SDE)!

  There are two monitors connected to this box, one with mini-
  HDMI->HDMI, one with mini-DP->HDMI cable.

  Maybe related:

  https://bugs.freedesktop.org/show_bug.cgi?id=80896

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-generic 3.19.0.26.25
  ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4
  Uname: Linux 3.19.0-26-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.3
  Architecture: amd64
  Date: Wed Aug 26 10:07:31 2015
  InstallationDate: Installed on 2015-08-01 (24 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)

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