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Message #142146
[Bug 1480615] Re: [Dell Latitude E6540] ALPS touchpad and buttons work only in a single window.
Philippe Ombredanne, to clarify:
1) Does this only happen after resuming from suspend?
2) Does this frequency of this issue change by uninstalling the fglrx drivers?
3) Any change with the latest mainline kernel (4.3-rc7)?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1480615
Title:
[Dell Latitude E6540] ALPS touchpad and buttons work only in a single
window.
Status in linux package in Ubuntu:
Incomplete
Bug description:
This is a kernel that has these recent ALPS related patches:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1258837
So after a reboot the touchpad and button work fine, at start.
After a while the buttons, a single tap click, a double tap-click and
the dual finger scrolling stop working on the correct front-most
window and work instead on a background window.
If I Alt-tab to bring the window that receives the touchpad events to
front, it receives it ok, so this one window gets mouse events. Using
either the touchpad or the glidepoint is then limited to this window
at this point.
Going to a terminal with ctrl-alt-f1 just a few seconds and then back
to ctrl-alt-f7 restores things to normal for a while. Until its starts
again. No dmesg nor syslog show up.
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: pombreda 1995 F.... pulseaudio
/dev/snd/controlC0: pombreda 1995 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=801124f8-51bc-4bec-accf-ba187acdece1
InstallationDate: Installed on 2015-05-16 (77 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: Dell Inc. Latitude E6540
NonfreeKernelModules: fglrx
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-45-generic root=UUID=df7edfbc-4df5-4603-a42b-c39f769bbb44 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14
RelatedPackageVersions:
linux-restricted-modules-3.16.0-45-generic N/A
linux-backports-modules-3.16.0-45-generic N/A
linux-firmware 1.127.14
Tags: trusty
Uname: Linux 3.16.0-45-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/19/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A15
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA15:bd05/19/2015:svnDellInc.:pnLatitudeE6540:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6540
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
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References