Hi, I also have the same issue, also a Dell Latitude e6420. Did you solve the issue?
-- 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/1630884 Title: Xorg freeze; mouse moves, but no mouse click or keyboard response Status in xorg package in Ubuntu: Confirmed Bug description: I've encountered this issue on several fresh installations of Ubuntu 16.04.1 on different machines. Typically, the machine becomes unresponsive to the keyboard presses or to mouse clicks; however, it does respond to mouse movement. I am unable to open a text console to manipulate processes, and I am forced to hard restart the machine. During the most recent instance, I noticed that the mouse cursor would change in response to its location on the screen while The issue most often occurs about 3-5 minutes after Chromium has been opened, but it has also occurred without Chromium being installed. Moreover, it as occurred while using Xfce and GNOME 3 and while using open source and proprietary video drivers. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19 Uname: Linux 4.4.0-38-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: GNOME Date: Thu Oct 6 00:04:47 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GpuHangFrequency: Several times a day GpuHangReproducibility: Occurs more often under certain circumstances GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: NVIDIA Corporation GF119M [NVS 4200M] [10de:1056] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell GF119M [NVS 4200M] [1028:0493] InstallationDate: Installed on 2016-10-06 (0 days ago) InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Dell Inc. Latitude E6420 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-38-generic root=UUID=3c7f4e14-5817-44b1-adbb-1666f8c29348 ro SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/04/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: A23 dmi.board.asset.tag: TSI3251 dmi.board.name: 032T9K dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.asset.tag: TSI3251 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA23:bd01/04/2016:svnDellInc.:pnLatitudeE6420:pvr01:rvnDellInc.:rn032T9K:rvrA02:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6420 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2.2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.1 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+git20160325-1ubuntu1.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1630884/+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