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Message #73100
[Bug 1258837] Re: [Dell Latitude E7440] ALPS touchpad keeps having state reset
Øyvind, I experienced that when I upgraded to BIOS A10 from A08.
Fortunately, I was able to downgrade from A10 back to A08. I suspect
that either A10 has an issue or it just pokes even harder at this bug
than A08 did. (A10 cites "Keyboard input improvement" as one of its
fixes, which is probably the relevant change.)
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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.
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