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Message #135432
[Bug 1487334] ProcEnviron.txt
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1487334/+attachment/4466924/+files/ProcEnviron.txt
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https://bugs.launchpad.net/bugs/1487334
Title:
Touchpad tap-event support broken since kernel 3.19.0-25
Status in linux package in Ubuntu:
Incomplete
Bug description:
Release: Ubuntu 15.04
Hardware: Logitech TK820 wireless keyboard with touchpad
I've been using the said hardware with ubuntu in all releases since
13.10 without problems. All touchpad features were working fine until
I received in 15.04 the automatic update to kernel version 3.19.0-22.
This kernel introduced a condition in which, at times, the system
started randomly registering keyboard input when pointing with the
touchpad.
The original bug got apparently fixed in kernel version 3.19.0-25, but
as a result this kernel version broke completely all tap-events for my
touchpad. They are not registering at all. Pointing and scrolling
work, so do the mechanical click-switches in the corners, but tapping
or sweeping with one or more fingers does not get registered even
though the settings were never touched. I now got kernel update to
3.19.0-26, but the bug persists in this version, too.
At the moment I had to revert back to kernel version 3.19.0-16 in order to be able to use my touchpad normally.
---
ApportVersion: 2.17.2-0ubuntu1.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: samuli 1172 F.... pulseaudio
/dev/snd/controlC1: samuli 1172 F.... pulseaudio
CurrentDesktop: X-Cinnamon
DistroRelease: Ubuntu 15.04
HibernationDevice: RESUME=UUID=caec55c5-801b-4ddb-81bf-ab7d116a7c9e
InstallationDate: Installed on 2014-06-24 (449 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
IwConfig:
eth1 no wireless extensions.
lo no wireless extensions.
MachineType: ASUS All Series
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-25-generic root=UUID=3f007092-6b41-4366-b197-b265d0225a0e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2
RelatedPackageVersions:
linux-restricted-modules-3.19.0-25-generic N/A
linux-backports-modules-3.19.0-25-generic N/A
linux-firmware 1.143.3
RfKill:
Tags: vivid
Uname: Linux 3.19.0-25-generic x86_64
UpgradeStatus: Upgraded to vivid on 2015-04-24 (145 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare samuli2 sudo
_MarkForUpload: True
dmi.bios.date: 05/16/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0506
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: MAXIMUS VII GENE
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0506:bd05/16/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnMAXIMUSVIIGENE:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS
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References