desktop-packages team mailing list archive

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

John Morris, to clarify, you upgraded the OS whose hardware is the
NUC5i5RYB (not some other computer with different parts) and this is
reproducible?

To advise, it's much easier to deal with different hardware that has similar/same symptoms if you filed a new report with Ubuntu by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information running the following from a terminal:
ubuntu-bug xorg

Also, please feel free to subscribe me to it.

For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.

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https://bugs.launchpad.net/bugs/1535447

Title:
  Intel Graphics 4K Screen Tearing

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  On a fresh boot all works well, but after an indeterminate amount of
  time the screen starts tearing badly, most noticeably as a permanent
  vertical tear. Once this tearing starts, it affects everything
  (desktop, etc)  but is mostly visible in videos. The only way to get
  rid of the tear is to reboot.

   I do not know where this tearing is occurring, compositor? graphics
  driver?

  Hardware, Intel NUC5i5RYK (integrated graphics), LG 31MU97 DCI 4K
  monitor (4096x2160). Using a Mini DisplayPort to HDMI cable between
  the NUC and monitor.

  00:02.0 VGA compatible controller: Intel Corporation Broadwell-U
  Integrated Graphics (rev 09)

  Software, Kubuntu 15.04 I also see the same problem in 15.10, but the computer I took the video of has 15.04 installed.
  The screen resolution is set to 4096x2160.
   
  In my syslog, I also see tons of these error messages (I dont know if they are related to the tearing). The error message repeats multiple times, and then stops.

  [  668.879288] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master
  control interrupt lied (SDE)!

  I am hoping I can attach a video to this file which shows the tearing (5.7MB)
  --- 
  ApportVersion: 2.17.2-0ubuntu1.8
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: KDE
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroRelease: Ubuntu 15.04
  DistroVariant: kubuntu
  DkmsStatus:
   virtualbox, 4.3.34, 3.19.0-43-generic, x86_64: installed
   virtualbox, 4.3.34, 3.19.0-47-generic, x86_64: installed
  ExtraDebuggingInterest: No
  GraphicsCard:
   Intel Corporation Broadwell-U Integrated Graphics [8086:1626] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Intel Corporation Device [8086:2057]
  InstallationDate: Installed on 2016-01-12 (13 days ago)
  InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  Package: xorg 1:7.7+7ubuntu4
  PackageArchitecture: amd64
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-47-generic.efi.signed root=UUID=cfabd4b7-56e6-40a7-a43a-315a7389748e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-47.53-generic 3.19.8-ckt10
  Tags: third-party-packages vivid kubuntu
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 3.19.0-47-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/22/2015
  dmi.bios.vendor: Intel Corporation
  dmi.bios.version: RYBDWi35.86A.0353.2015.1222.0947
  dmi.board.name: NUC5i5RYB
  dmi.board.vendor: Intel Corporation
  dmi.board.version: H40999-502
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorporation:bvrRYBDWi35.86A.0353.2015.1222.0947:bd12/22/2015:svn:pn:pvr:rvnIntelCorporation:rnNUC5i5RYB:rvrH40999-502:cvn:ct3:cvr:
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.6.0-~0intel1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.6.0-~0intel1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.3
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Tue Jan 26 08:36:27 2016
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                  38 
   vendor                                     AJA
  xserver.version: 2:1.17.1-0ubuntu3.1

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