This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1382702
Title:
Latitude e7440 Touchpad out of sync
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
The touchpad repetitively gets out of sync, causing the mouse to jump
around and randomly click things:
[ 399.788431] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0
lost sync at byte 6
[ 399.798582] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 -
driver resynced.
Loading the psmouse driver with proto=exps largely avoids the problem,
but has the side effect of merging the trackpad and the nub together
as one input device (so you can't disable the trackpad and just use
the nub).
Setting resetafter on the driver does fix the random moving and
clicking, but causes the CPU to thrash as it constantly disconnects
and reconnects to try to "resync."
I'm running dell BIOS A10 for this system, in UEFI mode.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-37-generic 3.13.0-37.64
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: taylocj1 2947 F.... pulseaudio
/dev/snd/controlC0: taylocj1 2947 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Oct 17 18:50:28 2014
HibernationDevice: RESUME=UUID=f364f93e-bbb2-4f84-aa9c-6ae3a0f6b182
InstallationDate: Installed on 2014-10-03 (14 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64
(20140722.2)
MachineType: Dell Inc. Latitude E7440
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-37-generic
root=UUID=d5a9e110-1f9c-446f-84b8-e57ddf7afca6 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-37-generic N/A
linux-backports-modules-3.13.0-37-generic N/A
linux-firmware 1.127.7
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/26/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
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.:bvrA10:bd06/26/2014:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn07F3F4:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E7440
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
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