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

Raoul Bhatia, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

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https://bugs.launchpad.net/bugs/1183804

Title:
  [Fujitsu LIFEBOOK U772] WARNING: at
  /build/buildd/linux-3.8.0/drivers/gpu/drm/i915/intel_display.c:1028
  intel_wait_for_pipe_off+0xe2/0x1a0 [i915]()

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Hi,

  I get the following warning in the dmesg:

  [   19.016094] WARNING: at
  /build/buildd/linux-3.8.0/drivers/gpu/drm/i915/intel_display.c:1028
  intel_wait_for_pipe_off+0xe2/0x1a0 [i915]()

  Also newer kernel from kernel ppa gives this warning.

  I dont know if this is related but sometimes after a reboot during
  booting I get the following stuck message and X doesn't start then.

  May 24 14:28:27 kernel: [    4.217459] [drm:intel_cpt_verify_modeset]
  *ERROR* mode set failed: pipe 0 stuck

  Full warning:

  [   19.016055] ------------[ cut here ]------------
  [   19.016094] WARNING: at /build/buildd/linux-3.8.0/drivers/gpu/drm/i915/intel_display.c:1028 intel_wait_for_pipe_off+0xe2/0x1a0 [i915]()
  [   19.016096] Hardware name: LIFEBOOK U772
  [   19.016097] pipe_off wait timed out
  [   19.016097] Modules linked in: dm_crypt(F) ip6table_filter(F) ip6_tables(F) iptable_filter(F) ip_tables(F) ebtable_nat(F) ebtables(F) x_tables(F) deflate(F) zlib_deflate(F) ctr(F) twofish_generic(F) twofish_avx_x86_64(F) twofish_x86_64_3way(F) twofish_x86_64(F) twofish_common(F) camellia_generic(F) camellia_aesni_avx_x86_64(F) camellia_x86_64(F) serpent_avx_x86_64(F) serpent_sse2_x86_64(F) serpent_generic(F) glue_helper(F) blowfish_generic(F) blowfish_x86_64(F) blowfish_common(F) cast5_avx_x86_64(F) cast5_generic(F) cast_common(F) des_generic(F) xcbc(F) rmd160(F) crypto_null(F) af_key(F) xfrm_algo(F) snd_hda_codec_hdmi snd_hda_codec_realtek joydev(F) tpm_infineon qmi_wwan hid_generic qcserial cdc_wdm usb_wwan usbnet usbserial uvcvideo kvm_intel videobuf2_vmalloc videobuf2_memops videobuf2_core kvm videodev ghash_clmulni_intel(F) usbhid hid usb_storage(F) aesni_intel(F) aes_x86_64(F) xts(F) lrw(F) gf128mul(F) ablk_helper(F) cryptd(F) btusb snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) tpm_tis snd_page_alloc(F) arc4(F) snd_seq_midi(F) snd_seq_midi_event(F) microcode(F) iwldvm psmouse(F) serio_raw(F) mac80211 snd_rawmidi(F) snd_seq(F) iwlwifi snd_seq_device(F) snd_timer(F) cfg80211 fujitsu_laptop mac_hid rtsx_pci_ms snd(F) i915 memstick parport_pc(F) lpc_ich video(F) drm_kms_helper ppdev(F) drm mei soundcore(F) i2c_algo_bit rfcomm bnep bluetooth coretemp lp(F) parport(F) binfmt_misc(F) nls_iso8859_1(F) rtsx_pci_sdmmc ahci(F) libahci(F) e1000e(F) rtsx_pci
  [   19.016144] Pid: 1784, comm: Xorg Tainted: GF       W    3.8.0-22-generic #33-Ubuntu
  [   19.016145] Call Trace:
  [   19.016149]  [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  [   19.016151]  [<ffffffff810588ec>] warn_slowpath_fmt+0x4c/0x50
  [   19.016163]  [<ffffffffa018bd12>] intel_wait_for_pipe_off+0xe2/0x1a0 [i915]
  [   19.016172]  [<ffffffffa018bee6>] intel_disable_pipe+0x116/0x190 [i915]
  [   19.016180]  [<ffffffffa018c68b>] ironlake_crtc_disable+0xdb/0x880 [i915]
  [   19.016193]  [<ffffffffa00ff94c>] ? drm_mode_create+0x4c/0x80 [drm]
  [   19.016202]  [<ffffffffa019434b>] intel_set_mode+0x36b/0xa30 [i915]
  [   19.016212]  [<ffffffffa0195126>] intel_crtc_set_config+0x716/0x950 [i915]
  [   19.016221]  [<ffffffffa0101c11>] drm_mode_setcrtc+0x121/0x5a0 [drm]
  [   19.016229]  [<ffffffffa00f2559>] drm_ioctl+0x4e9/0x5b0 [drm]
  [   19.016238]  [<ffffffffa0101af0>] ? drm_mode_setplane+0x370/0x370 [drm]
  [   19.016241]  [<ffffffff811a5a19>] do_vfs_ioctl+0x99/0x570
  [   19.016243]  [<ffffffff811a5f81>] sys_ioctl+0x91/0xb0
  [   19.016246]  [<ffffffff816d3a9d>] system_call_fastpath+0x1a/0x1f
  [   19.016248] ---[ end trace a30e3db1670741a2 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-22-generic 3.8.0-22.33
  ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11
  Uname: Linux 3.8.0-22-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  dkruyt     3076 F.... pulseaudio
  CRDA:
   country NL:
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5170 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
   	(5250 - 5330 @ 40), (N/A, 20), NO-OUTDOOR, DFS
   	(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Fri May 24 14:36:33 2013
  HibernationDevice: RESUME=UUID=105cff8e-8fc7-43ba-818e-169d8dc5447f
  InstallationDate: Installed on 2013-01-04 (139 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: FUJITSU LIFEBOOK U772
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-22-generic root=UUID=3d68b4a4-064d-4980-8f95-923500ee3338 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-22-generic N/A
   linux-backports-modules-3.8.0-22-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-04-26 (28 days ago)
  dmi.bios.date: 08/21/2012
  dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
  dmi.bios.version: Version 1.07
  dmi.board.name: FJNB247
  dmi.board.vendor: FUJITSU
  dmi.board.version: B3
  dmi.chassis.type: 10
  dmi.chassis.vendor: FUJITSU
  dmi.chassis.version: LIFEBOOK U772
  dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.07:bd08/21/2012:svnFUJITSU:pnLIFEBOOKU772:pvr10601581541:rvnFUJITSU:rnFJNB247:rvrB3:cvnFUJITSU:ct10:cvrLIFEBOOKU772:
  dmi.product.name: LIFEBOOK U772
  dmi.product.version: 10601581541
  dmi.sys.vendor: FUJITSU

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