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[CB <1479321@xxxxxxxxxxxxxxxxxx>]

Hi Christopher,

Sometime ago, after I reported this bug, I had already updated my BIOS
to 2.98:

~ $ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
K01 v02.98
03/18/2015

Since then I've got less video issues, but I cannot tell if they were
fixed by the BIOS update or by some other update like the new kernel I
have now (3.19).

Those 1-2 minutes freezes definitely have stopped or at least they are
not so frequent. But sometimes my Unity still freezes for a few seconds
like the first time when I press the Super key to bring up the Dash Home
screen or when I run apt-get install and it starts configuring some
package. I don't know if they are related. And also I am still seeing
i915 crashes and errors in dmesg:


[   10.132760] WARNING! power/level is deprecated; use power/control instead
[   10.287641] [drm:intel_dp_complete_link_train [i915]] *ERROR* failed to update link training
[   10.300577] [drm:intel_dp_complete_link_train [i915]] *ERROR* failed to update link training
[   10.327787] usbcore: registered new interface driver snd-usb-audio
[   10.449263] ------------[ cut here ]------------
[   10.449288] WARNING: CPU: 1 PID: 207 at /build/linux-lts-vivid-3x86XO/linux-lts-vivid-3.19.0/drivers/gpu/drm/i915/intel_display.c:958 intel_disable_pipe+0x2b6/0x2c0 [i91
[   10.449289] pipe_off wait timed out
[   10.449290] Modules linked in: x86_pkg_temp_thermal intel_powerclamp snd_usb_audio kvm_intel snd_usbmidi_lib snd_hda_codec_hdmi hp_wmi snd_hda_codec_realtek snd_hda_code
[   10.449312] CPU: 1 PID: 207 Comm: plymouthd Not tainted 3.19.0-28-generic #30~14.04.1-Ubuntu
[   10.449313] Hardware name: Hewlett-Packard HP Compaq Pro 6300 MT/339A, BIOS K01 v02.98 03/18/2015
[   10.449314]  ffffffffc075f6c8 ffff8802145c3a98 ffffffff817aed97 0000000000002f5c
[   10.449316]  ffff8802145c3ae8 ffff8802145c3ad8 ffffffff81074d8a 00000000fffee53b
[   10.449317]  ffff8800d99f0000 0000000000071008 00000000fffee539 0000000000000001
[   10.449319] Call Trace:
[   10.449324]  [<ffffffff817aed97>] dump_stack+0x45/0x57
[   10.449326]  [<ffffffff81074d8a>] warn_slowpath_common+0x8a/0xc0
[   10.449328]  [<ffffffff81074e06>] warn_slowpath_fmt+0x46/0x50
[   10.449338]  [<ffffffffc06fe126>] intel_disable_pipe+0x2b6/0x2c0 [i915]
[   10.449348]  [<ffffffffc0704d6d>] ironlake_crtc_disable+0xad/0x7c0 [i915]
[   10.449358]  [<ffffffffc0706439>] __intel_set_mode+0xa49/0xc60 [i915]
[   10.449367]  [<ffffffffc070cbb2>] intel_crtc_set_config+0x9e2/0xf60 [i915]
[   10.449377]  [<ffffffffc056783f>] drm_mode_set_config_internal+0x6f/0x110 [drm]
[   10.449381]  [<ffffffffc068a598>] restore_fbdev_mode+0xc8/0xf0 [drm_kms_helper]
[   10.449385]  [<ffffffffc068c4b9>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x80 [drm_kms_helper]
[   10.449395]  [<ffffffffc071a22e>] intel_fbdev_restore_mode+0x1e/0x50 [i915]
[   10.449406]  [<ffffffffc073e88e>] i915_driver_lastclose+0xe/0x20 [i915]
[   10.449411]  [<ffffffffc055ac4e>] drm_lastclose+0x2e/0x130 [drm]
[   10.449415]  [<ffffffffc055b088>] drm_release+0x338/0x540 [drm]
[   10.449418]  [<ffffffff811edf77>] __fput+0xe7/0x220                                                                                                                      
[   10.449420]  [<ffffffff811ee0fe>] ____fput+0xe/0x10                                                                                                                      
[   10.449422]  [<ffffffff81091dc7>] task_work_run+0xb7/0xf0                                                                                                                
[   10.449424]  [<ffffffff81015007>] do_notify_resume+0x97/0xb0                                                                                                             
[   10.449426]  [<ffffffff817b69ef>] int_signal+0x12/0x17                                                                                                                   
[   10.449427] ---[ end trace db2aa3664cf74152 ]---                                                                                                                         
[   10.508008] ip_tables: (C) 2000-2006 Netfilter Core Team                                                                                                                 
[   10.517342] [drm:ironlake_crtc_disable [i915]] *ERROR* failed to disable transcoder B                                                                                    
[   10.519890] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A                                                   
[   10.519902] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun                                                                      
[   10.519914] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder B                                                   
[   10.519922] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder B FIFO underrun

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1479321

Title:
  Xorg freeze

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  Every now and than my desktop freezes for a couple of minutes.  I can
  move the mouse pointer but it gets stuck in a single display (I have
  two).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8.1
  ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14
  Uname: Linux 3.16.0-45-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Wed Jul 29 08:38:07 2015
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus:
   virtualbox, 4.3.10, 3.16.0-43-generic, x86_64: installed
   virtualbox, 4.3.10, 3.16.0-45-generic, x86_64: installed
  ExtraDebuggingInterest: I just need to know a workaround
  GpuHangFrequency: Several times a week
  GpuHangReproducibility: Seems to happen randomly
  GpuHangStarted: Immediately after installing this version of Ubuntu
  GraphicsCard:
   Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:339a]
  InstallationDate: Installed on 2015-04-10 (109 days ago)
  InstallationMedia: It
  MachineType: Hewlett-Packard HP Compaq Pro 6300 MT
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-45-generic root=UUID=88d8ecda-fb83-4942-83db-bbb2ee83be80 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/16/2013
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: K01 v02.90
  dmi.board.asset.tag: BRJ40510V4
  dmi.board.name: 339A
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: BRJ40510V4
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrK01v02.90:bd07/16/2013:svnHewlett-Packard:pnHPCompaqPro6300MT:pvr:rvnHewlett-Packard:rn339A:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP Compaq Pro 6300 MT
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri N/A
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core N/A
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
  xserver.bootTime: Wed Jul 29 08:19:44 2015
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input        CHICONY HP Basic USB Keyboard KEYBOARD, id 8
   input        PixArt USB Optical Mouse MOUSE, id 9
   input        HP WMI hotkeys       KEYBOARD, id 10
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               12387 
   vendor                                     HWP
  xserver.version: 2:1.16.0-1ubuntu1.2~trusty2

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