Public bug reported: Running Xenial on a brand new T460s, I'm experiencing quite annoying graphics glitches. In certain regions of the screen, it looks like lines are missing or shifted, see attachments. Sometimes, a complete line even flickers constantly.
I've tried several video options in /etc/X11/xorg.conf.d/20-intel.conf including disabling SwapbuffersWait and TrippleBuffer. I've also observed the same behaviour with mainline kernels 4.5 and 4.6-rc3, as well as after upgrading Intel Graphics Firmware to https://01.org/linuxgraphics/downloads/skylake-guc-6.1. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6 Uname: Linux 4.4.0-18-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Tue Apr 12 09:58:37 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: virtualbox, 5.0.16, 4.4.0-18-generic, x86_64: installed EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Sky Lake Integrated Graphics [8086:1916] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Lenovo Skylake Integrated Graphics [17aa:2233] InstallationDate: Installed on 2016-04-05 (7 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323) MachineType: LENOVO 20FAS05P00 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-18-generic.efi.signed root=UUID=3a4e9786-3d60-4264-89ae-e22f6f1532f0 ro rootflags=subvol=@ noprompt intel_pstate=no_hwp SourcePackage: xserver-xorg-video-intel UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/15/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N1CET37W (1.05 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FAS05P00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1CET37W(1.05):bd01/15/2016:svnLENOVO:pn20FAS05P00:pvrThinkPadT460s:rvnLENOVO:rn20FAS05P00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20FAS05P00 dmi.product.version: ThinkPad T460s dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+16.04.20160331-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Tue Apr 12 09:45:48 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 38562 vendor MEI xserver.version: 2:1.18.3-1ubuntu2 ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug ubuntu xenial ** Attachment added: "Screenshot (camera) of graphics glitches" https://bugs.launchpad.net/bugs/1569479/+attachment/4634466/+files/glitches_1.jpg -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1569479 Title: Graphics glitches with Skylake Intel HD Graphics 520 Status in xserver-xorg-video-intel package in Ubuntu: New Bug description: Running Xenial on a brand new T460s, I'm experiencing quite annoying graphics glitches. In certain regions of the screen, it looks like lines are missing or shifted, see attachments. Sometimes, a complete line even flickers constantly. I've tried several video options in /etc/X11/xorg.conf.d/20-intel.conf including disabling SwapbuffersWait and TrippleBuffer. I've also observed the same behaviour with mainline kernels 4.5 and 4.6-rc3, as well as after upgrading Intel Graphics Firmware to https://01.org/linuxgraphics/downloads/skylake-guc-6.1. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6 Uname: Linux 4.4.0-18-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Tue Apr 12 09:58:37 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: virtualbox, 5.0.16, 4.4.0-18-generic, x86_64: installed EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Sky Lake Integrated Graphics [8086:1916] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Lenovo Skylake Integrated Graphics [17aa:2233] InstallationDate: Installed on 2016-04-05 (7 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323) MachineType: LENOVO 20FAS05P00 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-18-generic.efi.signed root=UUID=3a4e9786-3d60-4264-89ae-e22f6f1532f0 ro rootflags=subvol=@ noprompt intel_pstate=no_hwp SourcePackage: xserver-xorg-video-intel UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/15/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N1CET37W (1.05 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FAS05P00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1CET37W(1.05):bd01/15/2016:svnLENOVO:pn20FAS05P00:pvrThinkPadT460s:rvnLENOVO:rn20FAS05P00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20FAS05P00 dmi.product.version: ThinkPad T460s dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+16.04.20160331-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Tue Apr 12 09:45:48 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 38562 vendor MEI xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1569479/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
