Might be related to Lorenzo's thought: the random jumping and clicking only happen when the touchpad is treated as touchpad. I haven't had any problem when loading the touchpad driver as a simple mouse (no scrolling, tapping, multitouch, ... for the touchpad):
sudo modprobe -r psmouse sudo modprobe psmouse proto=imps I also found that whenever the touchpad started behaving badly (lots of "lost sync" messages), reloading the driver seems to reset it back to be good for a long while: sudo modprobe -r psmouse sudo modprobe psmouse About keyboard input, it might be hardware (pretty common for Dell). I have an E6440 that I can easily reproduce the key repititions by hitting the keys in a certain way (e.g. tapping a key straight down lightly while relaxing my finger). It looks a lot like the "bounce" effect in the old desktop keyboards, perhaps Dell didn't put in good-enough bounce-filtering. I can reproduce the same problem in Windows and FreeDOS. My E7440 also had that problem initially (although not as easy to produce as the E6440), but not after Dell replaced the keyboard (together with the touchpad). One solution for the keyboard repetition is to set the Bounce rate: Universal Access > Typing > Bounce Keys > Acceptance delay. You will have to experiment to find the right rate that work for you without missing intentional repetition (especially when smashing the keys when playing games). What works for my E6440 is to drag the delay all the way to shortest, then move the slider to the right (long) twice using the "right arrow" key. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1258837 Title: [Dell Latitude E7440] ALPS touchpad keeps having state reset Status in “linux” package in Ubuntu: Incomplete Bug description: The mouse cursor keeps on jumping around, and these messages appear in the log when it happens: Dec 7 21:57:26 wyvern kernel: [ 648.133841] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1 Dec 7 21:57:26 wyvern kernel: [ 648.134868] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1 Dec 7 21:57:26 wyvern kernel: [ 648.137921] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 - driver resynced. Dec 7 21:57:26 wyvern kernel: [ 648.138852] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1 Dec 7 21:57:26 wyvern kernel: [ 648.148833] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 - driver resynced. The touchpad is recognised as a "AlpsPS/2 ALPS DualPoint TouchPad". This is occurring with Ubuntu 13.10, though I have also seen this behaviour in the version of Linux Mint based on Ubuntu 13.04. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-14-generic 3.11.0-14.21 ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7 Uname: Linux 3.11.0-14-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: allanc 1852 F.... pulseaudio /dev/snd/controlC0: allanc 1852 F.... pulseaudio Date: Sat Dec 7 22:19:22 2013 HibernationDevice: RESUME=UUID=a2a36712-35de-4e20-9d1a-df3520f401ec InstallationDate: Installed on 2013-12-07 (0 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Dell Inc. Latitude E7440 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic.efi.signed root=UUID=d03a42e6-0dea-4969-a682-eb4d255abc70 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-14-generic N/A linux-backports-modules-3.11.0-14-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/14/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A03 dmi.board.name: 07F3F4 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA03:bd08/14/2013:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn07F3F4:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7440 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1258837/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
