kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Tags added: latest-bios-211

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https://bugs.launchpad.net/bugs/1513651

Title:
  Intel DRM pipe state mismatch on boot, intermittent kernel panics
  during video playback

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Kernel throws this stack trace on boot :

  [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
  [    3.334802] ------------[ cut here ]------------
  [    3.334813] WARNING: CPU: 0 PID: 281 at /build/linux-AxjFAn/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915]()
  [    3.334814] pipe state doesn't match!

  Various glitches follow, such as random X11 crashes and kernel panics
  during video playback.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  russell    1943 F.... pulseaudio
   /dev/snd/controlC0:  russell    1943 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Thu Nov  5 14:59:40 2015
  HibernationDevice: RESUME=UUID=6b764e3b-eb83-49b8-8c2b-fdc5f3d0e813
  InstallationDate: Installed on 2014-10-24 (377 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 03eb:8a0c Atmel Corp. 
   Bus 001 Device 003: ID 1bcf:2987 Sunplus Innovation Technology Inc. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. UX301LAA
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic.efi.signed root=UUID=4003d6a9-b84a-48f7-a5c2-6dadaad97778 ro quiet splash acpi_osi= cie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 nmi_watchdog=0 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-05-08 (181 days ago)
  dmi.bios.date: 06/05/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX301LAA.211
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX301LAA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX301LAA.211:bd06/05/2015:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX301LAA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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