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[Bug 1520040] Re: [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!


HI. Today I accessed http://kernel.ubuntu.com/~kernel-
ppa/mainline/?C=N;O=D but the very top line at the top of the page was a
link to http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc2-wily/,
which doesn't have kernel DEB packages (except for linux-
headers-4.4.0-040400rc2_4.4.0-040400rc2.201511251301_all.deb, but this
is only the kernel headers, I couldn't find any kernel image). Thus I
proceeded to http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-
next/ where the most recent folder with available DEB packages currently
is http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-

>From http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-
next/2015-11-21-wily/ I downloaded and installed the following packages:


I was able to boot this kernel. Here's the result of some commands:

'uname -a':

 Linux yurix 4.3.0-997-generic #201511202100 SMP Sat Nov 21 02:02:46 UTC
2015 x86_64 x86_64 x86_64 GNU/Linux

'dmesg |grep -i i915':

 [    1.175639] [drm] Initialized i915 1.6.0 20151120 for 0000:00:02.0 on minor 0
 [    2.343450] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
 [   13.974419] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
 (most recent event in dmesg was rcreated @ [ 1282.427420])

'dmesg |grep -i amd':

 [    0.000000]   AMD AuthenticAMD
 [    0.000000] RAMDISK: [mem 0x34978000-0x364b3fff]
 [    1.143551] [drm] amdgpu kernel modesetting enabled.
 [    1.146516] AMD IOMMUv2 driver by Joerg Roedel <jroedel@xxxxxxx>
 [    1.146519] AMD IOMMUv2 functionality not available on this system
 [    1.151854] amdgpu 0000:04:00.0: enabling device (0100 -> 0103)
 [    1.224583] amdgpu 0000:04:00.0: Direct firmware load for amdgpu/topaz_mc.bin failed with error -2
 [    1.224584] mc: Failed to load firmware "amdgpu/topaz_mc.bin"
 [    1.224604] [drm:gmc_v8_0_sw_init [amdgpu]] *ERROR* Failed to load mc firmware!
 [    1.224606] amdgpu 0000:04:00.0: Fatal error during GPU init
 [    1.224607] [drm] amdgpu: finishing device.
 [    1.224944] amdgpu: probe of 0000:04:00.0 failed with error -2

I noticed that 'fglrx_updates.ko' (which seems to be the AMD GPU driver)
probably is a proprietary driver and thus wasn't loaded by the kernel (I
noticed some dkms error messages related to it, during kernel
installation, probably because of restrictions at the driver's dkms.conf
file), which caused kernel '4.3.0-997-generic' to try to load
Because 'amdgpu.ko' wasn't loaded either, I was unable to run the 'AMD
Catalyst Control Center' (shell command: amdcccle). But the kernel did
detect the AMD GPU:

'aticonfig --list-adapters':
 * 0. 04:00.0 AMD Radeon R7 M260

 * - Default adapter (managed by

'lspci |grep -i amd':

04:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz
XT [Radeon R7 M260]

'i915.ko' was loaded and 'amdgpu.ko' depends on it. Here's the output for 'lsmod |grep -i i915':
 i915 --- 1204224 --- 5
 i2c_algo_bit --- 16384 --- 2 --- i915,amdgpu
 drm_kms_helper --- 135168 --- 2 --- i915,amdgpu
 drm --- 356352 --- 8 --- ttm,i915,drm_kms_helper,amdgpu
 video --- 36864 --- 3 --- i915,dell_wmi,dell_laptop

So, in a nutshell: looks like the kernel '4.3.0-997-generic' is doing ok
with its module 'i915.ko'. I will keep testing it for a while just to
make sure, but so far 'dmesg' hasn't shown me any message like
'[drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied
(SDE)!' for kernel '4.3.0-997-generic'.

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  [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt
  lied (SDE)!

Status in linux package in Ubuntu:

Bug description:
  Device: notebook Dell Inspiron 5548

  Operating system: 64-bit XUbuntu Linux 14.04 LTS

  Processor: Intel Core i7-5500U

  Kernel: 3.19.0-33-generic #38~14.04.1-Ubuntu SMP x86_64

  Video: dual chip. These are the two display controllers:
  - Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260] display controller 33000000Hz (requires kernel module / device driver "fglrx"); and
  - Intel Corporation Broadwell-U Integrated Graphics VGA compatible controller 33000000Hz (requires kernel module / device driver "i915").

  Problem: my notebook's operating system is switching to runlevel 0
  (power off) randomly, subtly and thus unexpectedly. And if I 'cat
  /var/log/kern.log |grep -i i915' I get a lot of "[drm:gen8_irq_handler
  [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!"
  messages. I'm under the impression that either the kernel or the
  kernel module "i915_bpo" is buggy.

  My notebook's problem can't be related to overheating, because it's a
  brand-new notebook (less than 1 month old) and I've already monitored
  its temperature parameters: nothing abnormal is happening. Also, I'm
  using a cooling laptop base/pad.

  Other kernels I've tested, with which the same issue happens:
  - 3.19.0-18-generic (kernel module: i915_bpo)
  - 3.19.0-23-generic (kernel module: i915_bpo)
  - 3.19.0-28-generic (kernel module: i915_bpo)
  - 4.2.0-18-generic (kernel module: i915)

  Temporary workaround: I downgraded to kernel "3.13.0-36-generic",
  which isn't buggy with its "i915_bdw.ko" (version 3.0) kernel object
  (module). Full path for this module:

  - "bdw" stands for "Broadwell"
  - "bpo", I believe, stands for "backport"

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.19.0-33-generic 3.19.0-33.38~14.04.1
  ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-33-generic x86_64
  NonfreeKernelModules: wl fglrx
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Wed Nov 25 23:44:39 2015
  InstallationDate: Installed on 2015-11-03 (22 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  SourcePackage: linux-lts-vivid
  UpgradeStatus: No upgrade log present (probably fresh install)
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
   /dev/snd/controlC0:  yuriyrs    2832 F.... pulseaudio
   /dev/snd/controlC1:  yuriyrs    2832 F.... pulseaudio
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=a08f36f9-0611-4894-9da9-8b1dcc960a86
  InstallationDate: Installed on 2015-11-03 (24 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  MachineType: Dell Inc. Inspiron 5548
  NonfreeKernelModules: fglrx wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-33-generic.efi.signed root=UUID=4f05c2b3-c971-4bf8-bcb6-a76d60b68e45 ro quiet splash video.use_native_backlight=1 intremap=no_x2apic_optout vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7
   linux-restricted-modules-3.19.0-33-generic N/A
   linux-backports-modules-3.19.0-33-generic  N/A
   linux-firmware                             1.127.18
  Tags:  trusty
  Uname: Linux 3.19.0-33-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner sudo tape video
  _MarkForUpload: True
  dmi.bios.date: 10/12/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 0YDTG3
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A02
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A06
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd10/12/2015:svnDellInc.:pnInspiron5548:pvrA06:rvnDellInc.:rn0YDTG3:rvrA02:cvnDellInc.:ct8:cvrA06:
  dmi.product.name: Inspiron 5548
  dmi.product.version: A06
  dmi.sys.vendor: Dell Inc.

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