(In reply to Chris Wilson from comment #10) > (There is certainly a kernel regression due to planes)
Even so, the original report makes no mention of using nightly or a very recent kernel. Also, the link to github implies the problem started to happen after an upgrade from Ubuntu 14.04 to 14.10. The latter uses kernel 3.16 and xf86-video-intel version 2.99.914. I am able to reproduce the bug with that config, getting the screen divided horizontally like in the attached screenshot. Adding Option "Present" "false" to the device section of xorg.conf works around the problem. -- 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/1395182 Title: Screen tears on xrandr orientation inverted Status in X.org xf86-video-intel: Fix Released Status in xserver-xorg-video-intel package in Ubuntu: Confirmed Bug description: When xrandr -o inverted is run, the resulting image is split down the middle. This happens 95% of the time; it has worked once or twice without tearing. Rotation can be activated through unity-control- center Display Settings rotation field, and that reliably works fine. When xrandr -o normal is run, the display returns to normal (although bug #1376760 is observed). xrandr -o right and xrandr -o left also reliably work without issue; this only occurs on xrandr -o inverted. The same behaviors are observed with the longer form of the command xrandr --output eDP1 --rotation inverted, etc. This has also been reported at https://github.com/pfps/yoga- laptop/issues/28, which uses xrandr commands to invert the display. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1 ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4 Uname: Linux 3.16.0-24-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.7-0ubuntu8 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: Fri Nov 21 15:09:03 2014 DistUpgraded: Fresh install DistroCodename: utopic DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:2217] InstallationDate: Installed on 2014-11-21 (0 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENOVO 20CDCTO1WW ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic.efi.signed root=UUID=d032fffc-748c-4ea7-9e61-3c53648c9e27 ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-intel UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/09/2014 dmi.bios.vendor: LENOVO dmi.bios.version: B0ET22WW (1.09) dmi.board.asset.tag: Not Available dmi.board.name: 20CDCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrB0ET22WW(1.09):bd09/09/2014:svnLENOVO:pn20CDCTO1WW:pvrThinkPadS1Yoga:rvnLENOVO:rn20CDCTO1WW:rvrSDK0E50512Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20CDCTO1WW dmi.product.version: ThinkPad S1 Yoga dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.56-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2 xserver.bootTime: Fri Nov 21 14:47:30 2014 xserver.configfile: default xserver.errors: Wacom ISDv4 EC Pen stylus: Invalid type 'cursor' for this device. Wacom ISDv4 EC Pen stylus: Invalid type 'touch' for this device. Wacom ISDv4 EC Pen stylus: Invalid type 'pad' for this device. xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1079 vendor LGD xserver.version: 2:1.16.0-1ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1395182/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
