kernel-packages team mailing list archive

[Yuri Ribeiro Sucupira <yuri_sucupira@xxxxxxxxxxx>]

Public bug reported:

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 (~1 week 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:
/lib/modules/3.13.0-36-generic/kernel/ubuntu/i915/i915_bdw.ko


Notes:
- "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)

** Affects: linux-lts-vivid (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug broadwell i915 trusty

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-lts-vivid in Ubuntu.
https://bugs.launchpad.net/bugs/1520040

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

Status in linux-lts-vivid package in Ubuntu:
  New

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 (~1 week 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:
  /lib/modules/3.13.0-36-generic/kernel/ubuntu/i915/i915_bdw.ko


  Notes:
  - "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)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-lts-vivid/+bug/1520040/+subscriptions