I am having a nearly identical problem with my P50 and an ASUS external monitor.
In my case the trails last for a second or two then go away until I move the mouse again. I have the same distorted cursor problem. I've tried connecting with DP and HDMI, using proprietary or community drivers, purging nvidia drivers and reloading, etc. By accident I have discovered that opening the System Settings and going to the Display settings (just going to them, not doing anything there) fixes it for as long as the Display settings are open. As soon as I close Display settings it comes right back. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1569876 Title: Mouse trails disappear only on window refresh Status in xserver-xorg-video-nouveau package in Ubuntu: Triaged Bug description: While using nouveau, when I move the mouse it leaves trails that disappear when I move the mouse over them or when I refresh the screen. The mouse cursor is distorted when moving it slowly which makes it harder to click on small buttons (e.g., resizing a window) as it's hard to tell where exactly the mouse is located. WORKAROUND: Use nivida 367.18. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 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 BootLog: /dev/sda6: clean, 789425/48300032 files, 33613548/193179136 blocks CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: KDE Date: Wed Apr 13 15:29:36 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: kubuntu DkmsStatus: bbswitch, 0.8, 4.4.0-17-generic, x86_64: installed bbswitch, 0.8, 4.4.0-18-generic, x86_64: installed ExtraDebuggingInterest: No GraphicsCard: Intel Corporation Skylake Integrated Graphics [8086:191b] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Lenovo Skylake Integrated Graphics [17aa:222e] NVIDIA Corporation GM107GLM [Quadro M1000M] [10de:13b1] (rev a2) (prog-if 00 [VGA controller]) Subsystem: Lenovo GM107GLM [Quadro M1000M] [17aa:222e] InstallationDate: Installed on 2016-04-01 (12 days ago) InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160331) MachineType: LENOVO 20EN0013US ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic root=UUID=8e0207fc-0fb8-42e7-9dfc-a301c74d2146 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/08/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N1EET47W (1.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20EN0013US dmi.board.vendor: LENOVO dmi.board.version: SDK0J40705 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1EET47W(1.21):bd03/08/2016:svnLENOVO:pn20EN0013US:pvrThinkPadP50:rvnLENOVO:rn20EN0013US:rvrSDK0J40705WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20EN0013US dmi.product.version: ThinkPad P50 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: Wed Apr 13 07:51:19 2016 xserver.configfile: default xserver.errors: Failed to load module "nvidia" (module does not exist, 0) Failed to load module "nvidia" (module does not exist, 0) Unknown chipset: NV117 xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1569876/+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
