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

Eric Carvalho, if all the mainline kernels boot, then it indicates a
downstream Ubuntu patch that is causing this issue.

** Changed in: linux (Ubuntu)
       Status: Incomplete => Triaged

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https://bugs.launchpad.net/bugs/1501431

Title:
  Various i915 Intel display driver crashes reported on syslog

Status in linux package in Ubuntu:
  Triaged

Bug description:
  Computer: Dell Latitude E5440.
  Ubuntu: 15.10
  Kernel: 4.2.0-12-generic

  The following error messages are logged at system startup, although
  there seems to be no side effects (i.e. everything works):

  [    4.426224] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
  [    4.426227] ------------[ cut here ]------------
  [    4.426240] WARNING: CPU: 0 PID: 293 at /build/linux-X28llO/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915]()
  [    4.426241] pipe state doesn't match!
  [    4.426242] Modules linked in: arc4 dell_wmi sparse_keymap dell_laptop dcdbas uvcvideo intel_rapl dell_smm_hwmon iosf_mbi x86_pkg_temp_thermal videobuf2_vmalloc btusb intel_powerclamp snd_hda_codec_hdmi btrtl kvm_intel btbcm videobuf2_memops snd_hda_codec_realtek btintel videobuf2_core snd_hda_codec_generic v4l2_common bluetooth kvm iwlmvm mac80211 videodev snd_hda_intel crct10dif_pclmul media crc32_pclmul snd_hda_codec ghash_clmulni_intel snd_hda_core snd_hwdep aesni_intel snd_pcm aes_x86_64 lrw gf128mul snd_seq_midi glue_helper iwlwifi ablk_helper snd_seq_midi_event cryptd snd_rawmidi snd_seq snd_seq_device cfg80211 snd_timer joydev input_leds serio_raw snd soundcore mei_me lpc_ich shpchp mei 8250_fintek dell_rbtn dell_smo8800 mac_hid coretemp parport_pc ppdev lp parport autofs4 i915 psmouse sdhci_pci
  [    4.426275]  e1000e sdhci ahci i2c_algo_bit ptp libahci drm_kms_helper pps_core drm wmi video
  [    4.426282] CPU: 0 PID: 293 Comm: plymouthd Not tainted 4.2.0-12-generic #14-Ubuntu
  [    4.426283] Hardware name: Dell Inc. Latitude E5440/078YP3, BIOS A12 05/19/2015
  [    4.426284]  ffffffffc0259ab0 ffff8800d319b7e8 ffffffff817b0cd5 0000000000000000
  [    4.426286]  ffff8800d319b838 ffff8800d319b828 ffffffff81076536 ffff8800d319b858
  [    4.426288]  ffff8800d319b8c0 ffff8801190e4800 0000000000000001 ffff8801190e4b50
  [    4.426290] Call Trace:
  [    4.426295]  [<ffffffff817b0cd5>] dump_stack+0x45/0x57
  [    4.426299]  [<ffffffff81076536>] warn_slowpath_common+0x86/0xc0
  [    4.426301]  [<ffffffff810765b6>] warn_slowpath_fmt+0x46/0x50
  [    4.426313]  [<ffffffffc01ec4d1>] ? intel_pipe_config_compare+0xb31/0xc60 [i915]
  [    4.426323]  [<ffffffffc01ec8c5>] check_crtc_state+0x2c5/0x440 [i915]
  [    4.426336]  [<ffffffffc02003de>] intel_modeset_check_state+0x20e/0x6b0 [i915]
  [    4.426348]  [<ffffffffc0201587>] intel_crtc_set_config+0x4c7/0x580 [i915]
  [    4.426361]  [<ffffffffc002f915>] ? drm_mode_create+0x25/0x60 [drm]
  [    4.426370]  [<ffffffffc0029036>] drm_mode_set_config_internal+0x66/0x100 [drm]
  [    4.426379]  [<ffffffffc002d5f8>] drm_mode_setcrtc+0x3a8/0x4c0 [drm]
  [    4.426385]  [<ffffffffc001e365>] drm_ioctl+0x125/0x610 [drm]
  [    4.426392]  [<ffffffffc002d250>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
  [    4.426396]  [<ffffffff81200075>] do_vfs_ioctl+0x285/0x470
  [    4.426398]  [<ffffffff811ab548>] ? SyS_mmap_pgoff+0xe8/0x270
  [    4.426400]  [<ffffffff812002d9>] SyS_ioctl+0x79/0x90
  [    4.426403]  [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  [    4.426404] ---[ end trace 5386212d0bc499d7 ]---

  [    4.427646] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
  [    4.427648] ------------[ cut here ]------------
  [    4.427658] WARNING: CPU: 0 PID: 293 at /build/linux-X28llO/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915]()
  [    4.427659] pipe state doesn't match!
  [    4.427660] Modules linked in: arc4 dell_wmi sparse_keymap dell_laptop dcdbas uvcvideo intel_rapl dell_smm_hwmon iosf_mbi x86_pkg_temp_thermal videobuf2_vmalloc btusb intel_powerclamp snd_hda_codec_hdmi btrtl kvm_intel btbcm videobuf2_memops snd_hda_codec_realtek btintel videobuf2_core snd_hda_codec_generic v4l2_common bluetooth kvm iwlmvm mac80211 videodev snd_hda_intel crct10dif_pclmul media crc32_pclmul snd_hda_codec ghash_clmulni_intel snd_hda_core snd_hwdep aesni_intel snd_pcm aes_x86_64 lrw gf128mul snd_seq_midi glue_helper iwlwifi ablk_helper snd_seq_midi_event cryptd snd_rawmidi snd_seq snd_seq_device cfg80211 snd_timer joydev input_leds serio_raw snd soundcore mei_me lpc_ich shpchp mei 8250_fintek dell_rbtn dell_smo8800 mac_hid coretemp parport_pc ppdev lp parport autofs4 i915 psmouse sdhci_pci
  [    4.427688]  e1000e sdhci ahci i2c_algo_bit ptp libahci drm_kms_helper pps_core drm wmi video
  [    4.427694] CPU: 0 PID: 293 Comm: plymouthd Tainted: G        W       4.2.0-12-generic #14-Ubuntu
  [    4.427694] Hardware name: Dell Inc. Latitude E5440/078YP3, BIOS A12 05/19/2015
  [    4.427696]  ffffffffc0259ab0 ffff8800d319b7e8 ffffffff817b0cd5 0000000000000000
  [    4.427697]  ffff8800d319b838 ffff8800d319b828 ffffffff81076536 ffff8800d319b858
  [    4.427699]  ffff8800d319b8c0 ffff8801190e4800 0000000000000001 ffff8801190e4b50
  [    4.427700] Call Trace:
  [    4.427703]  [<ffffffff817b0cd5>] dump_stack+0x45/0x57
  [    4.427706]  [<ffffffff81076536>] warn_slowpath_common+0x86/0xc0
  [    4.427708]  [<ffffffff810765b6>] warn_slowpath_fmt+0x46/0x50
  [    4.427717]  [<ffffffffc01ec4d1>] ? intel_pipe_config_compare+0xb31/0xc60 [i915]
  [    4.427725]  [<ffffffffc01ec8c5>] check_crtc_state+0x2c5/0x440 [i915]
  [    4.427737]  [<ffffffffc02003de>] intel_modeset_check_state+0x20e/0x6b0 [i915]
  [    4.427747]  [<ffffffffc0201587>] intel_crtc_set_config+0x4c7/0x580 [i915]
  [    4.427756]  [<ffffffffc002f915>] ? drm_mode_create+0x25/0x60 [drm]
  [    4.427764]  [<ffffffffc0029036>] drm_mode_set_config_internal+0x66/0x100 [drm]
  [    4.427771]  [<ffffffffc002d5f8>] drm_mode_setcrtc+0x3a8/0x4c0 [drm]
  [    4.427776]  [<ffffffffc001e365>] drm_ioctl+0x125/0x610 [drm]
  [    4.427778]  [<ffffffff811a2301>] ? __do_fault+0x41/0xc0
  [    4.427785]  [<ffffffffc002d250>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
  [    4.427787]  [<ffffffff81200075>] do_vfs_ioctl+0x285/0x470
  [    4.427790]  [<ffffffff810630a4>] ? __do_page_fault+0x1b4/0x400
  [    4.427791]  [<ffffffff812002d9>] SyS_ioctl+0x79/0x90
  [    4.427793]  [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  [    4.427795] ---[ end trace 5386212d0bc499d8 ]---

  [    5.047746] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
  [    5.047750] ------------[ cut here ]------------
  [    5.047767] WARNING: CPU: 1 PID: 956 at /build/linux-X28llO/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915]()
  [    5.047768] pipe state doesn't match!
  [    5.047769] Modules linked in: binfmt_misc arc4 dell_wmi sparse_keymap dell_laptop dcdbas uvcvideo intel_rapl dell_smm_hwmon iosf_mbi x86_pkg_temp_thermal videobuf2_vmalloc btusb intel_powerclamp snd_hda_codec_hdmi btrtl kvm_intel btbcm videobuf2_memops snd_hda_codec_realtek btintel videobuf2_core snd_hda_codec_generic v4l2_common bluetooth kvm iwlmvm mac80211 videodev snd_hda_intel crct10dif_pclmul media crc32_pclmul snd_hda_codec ghash_clmulni_intel snd_hda_core snd_hwdep aesni_intel snd_pcm aes_x86_64 lrw gf128mul snd_seq_midi glue_helper iwlwifi ablk_helper snd_seq_midi_event cryptd snd_rawmidi snd_seq snd_seq_device cfg80211 snd_timer joydev input_leds serio_raw snd soundcore mei_me lpc_ich shpchp mei 8250_fintek dell_rbtn dell_smo8800 mac_hid coretemp parport_pc ppdev lp parport autofs4 i915
  [    5.047813]  psmouse sdhci_pci e1000e sdhci ahci i2c_algo_bit ptp libahci drm_kms_helper pps_core drm wmi video
  [    5.047822] CPU: 1 PID: 956 Comm: Xorg Tainted: G        W       4.2.0-12-generic #14-Ubuntu
  [    5.047824] Hardware name: Dell Inc. Latitude E5440/078YP3, BIOS A12 05/19/2015
  [    5.047825]  ffffffffc0259ab0 ffff8800d37df7e8 ffffffff817b0cd5 0000000000000000
  [    5.047828]  ffff8800d37df838 ffff8800d37df828 ffffffff81076536 ffff8800d37df858
  [    5.047831]  ffff8800d37df8c0 ffff8801190e4800 0000000000000001 ffff8801190e4b50
  [    5.047833] Call Trace:
  [    5.047839]  [<ffffffff817b0cd5>] dump_stack+0x45/0x57
  [    5.047843]  [<ffffffff81076536>] warn_slowpath_common+0x86/0xc0
  [    5.047846]  [<ffffffff810765b6>] warn_slowpath_fmt+0x46/0x50
  [    5.047861]  [<ffffffffc01ec4d1>] ? intel_pipe_config_compare+0xb31/0xc60 [i915]
  [    5.047874]  [<ffffffffc01ec8c5>] check_crtc_state+0x2c5/0x440 [i915]
  [    5.047892]  [<ffffffffc02003de>] intel_modeset_check_state+0x20e/0x6b0 [i915]
  [    5.047906]  [<ffffffffc0201587>] intel_crtc_set_config+0x4c7/0x580 [i915]
  [    5.047921]  [<ffffffffc002f915>] ? drm_mode_create+0x25/0x60 [drm]
  [    5.047932]  [<ffffffffc0029036>] drm_mode_set_config_internal+0x66/0x100 [drm]
  [    5.047942]  [<ffffffffc002d5f8>] drm_mode_setcrtc+0x3a8/0x4c0 [drm]
  [    5.047950]  [<ffffffffc001e365>] drm_ioctl+0x125/0x610 [drm]
  [    5.047959]  [<ffffffffc002d250>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
  [    5.047962]  [<ffffffff81200075>] do_vfs_ioctl+0x285/0x470
  [    5.047965]  [<ffffffff8108190f>] ? recalc_sigpending+0x1f/0x60
  [    5.047967]  [<ffffffff810828b2>] ? __set_task_blocked+0x32/0x70
  [    5.047970]  [<ffffffff812002d9>] SyS_ioctl+0x79/0x90
  [    5.047973]  [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  [    5.047975] ---[ end trace 5386212d0bc499d9 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-12-generic 4.2.0-12.14
  ProcVersionSignature: Ubuntu 4.2.0-12.14-generic 4.2.1
  Uname: Linux 4.2.0-12-generic x86_64
  ApportVersion: 2.19-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  carvalho   1911 F.... pulseaudio
   /dev/snd/controlC1:  carvalho   1911 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Sep 30 13:42:56 2015
  HibernationDevice: RESUME=UUID=f6d9c4a9-4d0f-478b-9e7b-5ae4c99d848f
  InstallationDate: Installed on 2015-03-29 (184 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
  MachineType: Dell Inc. Latitude E5440
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-12-generic root=UUID=4760504d-b0ba-4af9-93a0-93a6138b534c ro quiet splash crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-12-generic N/A
   linux-backports-modules-4.2.0-12-generic  N/A
   linux-firmware                            1.148
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/19/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A12
  dmi.board.name: 078YP3
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA12:bd05/19/2015:svnDellInc.:pnLatitudeE5440:pvr01:rvnDellInc.:rn078YP3:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E5440
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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