The Xorg team people believe they have resolved this now: https://bugs.freedesktop.org/show_bug.cgi?id=94987
commit 7aa6ca61ee5546d74b76610894924cdb0d4a1af0 Author: Chris Wilson <[email protected]> Date: Mon Nov 7 16:52:04 2016 +0000 drm/i915: Mark CPU cache as dirty when used for rendering No idea of the release / version this has been resolved in though - and guessing the Ubuntu 16.04 packages won't be carrying the very latest commits and releases. Any chance the Ubuntu package maintainers can reach out to their upstream to discuss and look at including? -- 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/1586539 Title: Major screen flickering in Chromium and Google Chrome Status in X.Org X server: Fix Released Status in xserver-xorg-video-intel package in Ubuntu: Incomplete Bug description: On a fresh installation of Ubuntu 16.04 I noticed major screen flickering issues in Chromium and Google Chrome browsers. Since this never happened in Ubuntu 15.10 with exactly the same Google Chrome binary, I believe, bug is caused by something that was added/updated in 16.04. I came across some discussions where different people suggested that it is related to new X.Org version. Here's a video to show what is happening: https://youtu.be/l21WsKz3fZc?t=45s I could fix this flickering with --disable-gpu-compositing switch, but this slows down page drawing significantly so it can't be considered a workaround. There is also a Chromium bug report: https://bugs.chromium.org/p/chromium/issues/detail?id=606152, but I don't think they will fix an Ubuntu-specific bug. Update: this indeed happens only when browser window is maximized. WORKAROUND: 1. sudo apt-get purge xserver-xorg-video-intel 2. sudo rm /usr/share/X11/xorg.conf.d/20-intel.conf (for those who created this file before) 3. reboot ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 Uname: Linux 4.6.0-040600-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 BootLog: 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: Sat May 28 00:01:20 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: vboxhost, 5.0.20, 4.4.0-22-generic, x86_64: installed vboxhost, 5.0.20, 4.6.0-040600-generic, x86_64: installed EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Haswell-ULT Integrated Graphics Controller [1043:13bd] InstallationDate: Installed on 2016-05-01 (26 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: ASUSTeK COMPUTER INC. UX301LAA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.6.0-040600-generic root=UUID=172b2d49-444a-466b-ab91-b74605125b29 ro quiet splash rootfstype=ext4 vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/05/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: UX301LAA.211 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: UX301LAA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX301LAA.211:bd06/05/2015:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: UX301LAA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 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: Sun May 22 23:28:15 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 5126 vendor SHP xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1586539/+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
