Simon, as per http://www.samsung.com/ae/support/model/NP-R40XY03/SER an update to your computer's buggy and outdated BIOS is available (06YE). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?
If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible, and the information above is provided, then please mark this report Status New. Otherwise, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-06ye -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1507289 Title: Artefacts Status in xorg package in Ubuntu: Incomplete Bug description: http://i.imgur.com/hxLRVbe.png http://storage1.static.itmages.com/i/15/1018/h_1445168064_5802834_0cebe76e5f.png http://i.imgur.com/oZdqSdm.png http://storage2.static.itmages.com/i/15/1018/h_1445168194_9514576_95e3c40ee2.png ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic i686 .tmp.unity.support.test.0: ApportVersion: 2.19.1-0ubuntu2 Architecture: i386 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: Sun Oct 18 14:28:31 2015 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] RS600M [Radeon Xpress 1250] [1002:7942] (prog-if 00 [VGA controller]) Subsystem: Samsung Electronics Co Ltd Device [144d:c036] InstallationDate: Installed on 2015-10-16 (1 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha i386 (20150924) MachineType: SAMSUNG ELECTRONICS CO., LTD. R40P/R41P PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=544e68a5-5176-4e2e-9366-2553564b988c 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: 03/29/2007 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: 02YE dmi.board.name: R40P/R41P dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 1 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr02YE:bd03/29/2007:svnSAMSUNGELECTRONICSCO.,LTD.:pnR40P/R41P:pvr01YE:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR40P/R41P:rvr:cvnSAMSUNGELECTRONICSCO.,LTD.:ct1:cvrN/A: dmi.product.name: R40P/R41P dmi.product.version: 01YE dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1 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.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: Sun Oct 18 13:21:47 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: Output LVDS S-video VGA-0 xserver.version: 2:1.17.2-1ubuntu9 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1507289/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp