Neil Widdowson, thank you for reporting this and helping make Ubuntu better.
Any change using the nouveau drivers? ** Tags added: latest-bios-1.8 ** Changed in: xorg (Ubuntu) Importance: Undecided => Medium ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1515995 Title: Screen Status in xorg package in Ubuntu: Incomplete Bug description: I am trying out Kubuntu at the moment and I have noticed that when watching videos they flicker. I have tried the different options in the 'Compositor Settings for Desktop Effects' Tearing Prevention and none seem to make a difference other than that if I put it on automatic, the top half of the screen flickers, and with 'full screen repaints' the whole screen flickers. I have tried the official Nvidia driver (352), the one from software centre and the default one - all make the video flicker in full screen. I had the same problem while using Linux Mint Mate, but not while using the Cinnamon Desktop, I also don't remember the problem occurring while using Ubuntu Unity Desktop. I am fairly new to Linux so I don't know too much about how to go about finding out the problem. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3 Uname: Linux 4.2.0-18-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 352.41 Fri Aug 21 23:09:52 PDT 2015 GCC version: gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu2) ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 BootLog: fsck from util-linux 2.26.2 /dev/sdb2: clean, 266511/13574144 files, 7382798/54296320 blocks CurrentDesktop: KDE Date: Fri Nov 13 12:47:42 2015 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: kubuntu DkmsStatus: bbswitch, 0.7, 4.2.0-18-generic, x86_64: installed nvidia-352-updates, 352.41, 4.2.0-18-generic, x86_64: installed GraphicsCard: NVIDIA Corporation GK104 [GeForce GTX 760] [10de:1187] (rev a1) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation Device [10de:0984] InstallationDate: Installed on 2015-11-12 (0 days ago) InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: MSI MS-7850 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic.efi.signed root=UUID=43b80561-2236-4234-9459-091517df6ac9 ro quiet splash vt.handoff=7 SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/21/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V1.8 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z87-G41 PC Mate(MS-7850) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.8:bd07/21/2014:svnMSI:pnMS-7850:pvr1.0:rvnMSI:rnZ87-G41PCMate(MS-7850):rvr1.0:cvnMSI:ct3:cvr1.0: dmi.product.name: MS-7850 dmi.product.version: 1.0 dmi.sys.vendor: MSI version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Fri Nov 13 10:44:18 2015 xserver.configfile: /etc/X11/xorg.conf xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.17.2-1ubuntu9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1515995/+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