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[Raniz <raniz@xxxxxxxxxxx>]

Happening here as well with 4.4.0 RC7

$ uname -r v
4.4.0-040400rc7-generic #201512272230 SMP Mon Dec 28 03:32:16 UTC 2015


$ dmesg | egrep '(intel|i915)'
[    0.149154] pci 0000:00:14.0: reg 0x10: [mem 0xe1220000-0xe122ffff 64bit]
[    0.649005]  [<ffffffff81f661fd>] intel_uncore_init+0xe2/0x2e1
[    0.649435] audit: type=2000 audit(1451915134.644:1): initialized
[    0.985552] intel_idle: MWAIT substates: 0x11142120
[    0.985553] intel_idle: v0.4 model 0x3D
[    0.985554] intel_idle: lapic_timer_reliable_states 0xffffffff
[    1.114161] rtc_cmos 00:02: setting system clock to 2016-01-04 13:45:35 UTC (1451915135)
[    1.453450] fb: switching to inteldrmfb from VESA VGA
[    1.475347] [drm] Initialized i915 1.6.0 20151010 for 0000:00:02.0 on minor 0
[    1.580736] fbcon: inteldrmfb (fb0) is primary device
[    2.687961] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
-- Repeated 44 times --
[    2.752695] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5
[    2.817096] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
-- Repeated 56 times --
[    2.851265] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    2.902734] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
-- Repeated 91 times --
[    3.467690] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[    3.785259] intel_rapl: Found RAPL domain package
[    3.785262] intel_rapl: Found RAPL domain core
[    3.785264] intel_rapl: Found RAPL domain uncore
[    3.785265] intel_rapl: Found RAPL domain dram
[    6.732430] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
-- Repeated 44 times --
[   47.125136] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
[   47.128273] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
[   70.590927] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
-- Repeated 98 times --

-- 
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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:
  Confirmed
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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