As requested I downloaded the latest build and ran it from USB. After selecting hybrid graphics in BIOS I booted up and was delighted to see no mouse trails on the 2nd monitor!
I then rebooted back into 16.04 leaving hybrid graphics selected - no mouse trails! I think there was an Intel firmware update a week or two ago that I got on Windows, maybe it updated the Intel graphics firmware? Whatever happened I am happy to say that I cannot now duplicate the problem and hybrid graphics seems to be working properly in both 16.04 and 17.10. Thanks for your help. -- 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/1664397 Title: Mouse trails and distorted cursor on 2nd monitor Status in xorg package in Ubuntu: Incomplete Bug description: Lenovo Thinkpad P50, Xeon, Nvidia M2000m 4GB, 16 GB RAM 2nd monitor (ASUS) connected via either DP or HDMI, when using Hybrid Graphics the cursor on the second display is distorted and leaves mouse trails that persist for several seconds. Switching to Nvidia graphics cures but Nvidia has other problems (built in display is dim and brightness cannot be adjusted). Interestingly, just opening Display settings also cures the problem for as long as the Display Setting dialog is open. Under Windows (10 Pro) Hybrid Graphics does not exhibit this problem. Ubuntu release is 16.04.2 LTS. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 Uname: Linux 4.9.0-040900-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 BootLog: /dev/nvme0n1p2: clean, 297436/7282688 files, 2849132/29101568 blocks 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: Mon Feb 13 18:15:25 2017 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: bbswitch, 0.8, 4.4.0-62-generic, x86_64: installed bbswitch, 0.8, 4.9.0-040900-generic, x86_64: installed EcryptfsInUse: Yes GraphicsCard: NVIDIA Corporation GM107GLM [Quadro M2000M] [10de:13b0] (rev a2) (prog-if 00 [VGA controller]) Subsystem: Lenovo GM107GLM [Quadro M2000M] [17aa:2230] InstallationDate: Installed on 2017-01-07 (37 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: LENOVO 20EN001SUS ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.9.0-040900-generic root=UUID=81b27291-6609-488b-8477-b2eb41ab17f2 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/08/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N1EET64W (1.37 ) dmi.board.asset.tag: Not Available dmi.board.name: 20EN001SUS 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:bvrN1EET64W(1.37):bd12/08/2016:svnLENOVO:pn20EN001SUS:pvrThinkPadP50:rvnLENOVO:rn20EN001SUS:rvrSDK0J40705WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20EN001SUS dmi.product.version: ThinkPad P50 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.70-1~ubuntu16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.6-0ubuntu0.16.04.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.6-0ubuntu0.16.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.2 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+git20160325-1ubuntu1.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Mon Feb 13 18:15:02 2017 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.4-0ubuntu0.2 xserver.video_driver: modeset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1664397/+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