Public bug reported:
This is an intermittent issue that I have been experiencing with Ubuntu
15.10 (Unity) and an HP Envy x360 hybrid notebook.
Touchpad inputs suddenly begin to cause erratic outcomes. Making any
input with the touchpad often causes the cursor to appear near the top
right of the screen or in another unpredictable location. There are
phantom left and right clicks recorded without the user inputting them.
While trying to move the cursor to any particular place or to make some
other action, the cursor "dances" around the area or appears at an
extreme of the screen.
Touchscreen inputs and external mouse inputs continue to function
normally. As long as the user is not interacting with the touchpad at
all, then everything appears normal.
Only a full reboot appears sufficient to correct the error. I have not
been able to test hibernate/resume as a workaround, as hibernate is not
currently working on this machine. Logout/login and suspend-resume to
not appear to correct the problem.
This bug does not appear reliably after any particular action or period
of time. I have occasionally noticed it after a resume from suspend, but
it has also been present on boot or just in the middle of normal
operation. The logs posted with this bug were collected after an
appearance in the middle of normal use.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xserver-xorg-input-synaptics 1.8.2-1ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
Uname: Linux 4.2.0-35-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Mar 18 00:50:56 2016
DistUpgraded: Fresh install
DistroCodename: wily
DistroVariant: ubuntu
InstallationDate: Installed on 2014-08-10 (586 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Hewlett-Packard HP ENVY 15 x360 PC
PlymouthDebug: Error: [Errno 13] Permission denied:
'/var/log/plymouth-debug.log'
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-35-generic.efi.signed
root=UUID=5ad8035a-f2a4-4334-84d8-e2a8a7396bf8 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-input-synaptics
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/19/2015
dmi.bios.vendor: Insyde
dmi.bios.version: F.26
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 22D6
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 89.23
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnInsyde:bvrF.26:bd01/19/2015:svnHewlett-Packard:pnHPENVY15x360PC:pvr0974100022405F00000420180:rvnHewlett-Packard:rn22D6:rvr89.23:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP ENVY 15 x360 PC
dmi.product.version: 0974100022405F00000420180
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12.2+15.10.20151202-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.65+git20151026.c745e541-0ubuntu0ricotz~wily
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.4-1intel1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.4-1intel1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:7.5.99+git20150521.d64a13eb-0ubuntu0ricotz
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.11+git20150926.1ff13a92-0ubuntu0sarvatt
xserver.bootTime: Thu Mar 17 21:12:38 2016
xserver.configfile: default
xserver.errors:
Failed to load module "intel" (module does not exist, 0)
Failed to load module "intel" (module does not exist, 0)
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.17.2-1ubuntu9.1
xserver.video_driver: modeset
** Affects: xserver-xorg-input-synaptics (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug third-party-packages ubuntu wily
** Attachment added: "dmesg - full session readout, error condition appeared
near end"
https://bugs.launchpad.net/bugs/1559073/+attachment/4603121/+files/dmesg_log
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https://bugs.launchpad.net/bugs/1559073
Title:
touchpad input becomes erratic - reboot required
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