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Message #165685
[Bug 1506817] Re: left TPP/2 IBM TrackPoint "sticks on" randomly (X250 15.04)
Final report:
1) I have removed my hacks to the mouse config setup and rebooted several kernels. The kernel used by 15.04
is buggy and does not properly support
MatchProduct "PS/2 Synaptics TouchPad"
and
Option "Emulate3Buttons" "0"
The buttons work properly with earlier kernels
3.19.0-42-generic
and later kernels
4.5.0-040500rc3-generic
but not with
4.2.0-30-generic
To fully work, it was necessary to upgrade the BIOS (described earlier in this bug report) and then turn off the
synaptics TouchPad in the bios setup.
If the touchpad is left on (in the BIOS), then the mouse jumps around every now and then, when the palm of my right hand
touched the touchpad.
The software suppression of the touch-pad was not sufficient to keep the mouse from randoming leaving focus of the window I was typing in. For example, I would be responding to an email and the focus would be lost at random times, because my palm would touch the synaptics touch-pad. This rendered the touchpad unuseable.
Hence I found it necessary to turn it off, in the BIOS
Summary: With the early 3.19 and later 4.5 kernels, the mouse button sticking problem is resolved, but with the 4.2 kernel,
it is sticking on, when pressed, at random times. This renders the computer unuseable for daily work.
Thus the problem seems to be solved with the 4.5 kernels (and with the older kernel, with the further requirement I turn off
the touchpad in the BIOS.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1506817
Title:
left TPP/2 IBM TrackPoint "sticks on" randomly (X250 15.04)
Status in linux package in Ubuntu:
Confirmed
Bug description:
I have reported the details of this problem at
https://answers.launchpad.net/ubuntu-certification/+question/272142
As summarized on that question:
X250 analysis:
I used the command on the X250
evtest /dev/input/event15 | grep EV_KEY
I can see the bug, as follows:
I click on button 1 (left) over and over. When I push the button down,
I see it register as 1,
and when I let go of the key, it registers as a 0.
The bug is that every now and then (once every 20 clicks), when I let go
of the left mouse button (BIN_LEFT), it does not return to state 0 (it stays in state 1).
This is highly random, but cant be triggered more often, by dragging a
window, which I do with BIN_LEFT.
I am using a brand new X250, purchased in late July 2015. The system was returned 3 times to IBM repair as I assumed
this was a hardware error. Now with the above, it seems clear that this is a software issue.
Ubuntu 15.04
apt-cache policy xserver-xorg-input-synaptics
xserver-xorg-input-synaptics:
Installed: 1.8.1-1ubuntu1
Candidate: 1.8.1-1ubuntu1
Version table:
*** 1.8.1-1ubuntu1 0
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xserver-xorg-input-synaptics 1.8.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6
Uname: Linux 3.19.0-30-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.5
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Oct 16 04:52:03 2015
DistUpgraded: Fresh install
DistroCodename: vivid
DistroVariant: ubuntu
InstallationDate: Installed on 2015-08-15 (61 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: LENOVO 20CMCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic.efi.signed root=UUID=5718b40f-944e-47a3-acda-04e29336d0bc ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-input-synaptics
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/19/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N10ET36W (1.15 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CMCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: 0B98417 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN10ET36W(1.15):bd06/19/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkPadX250:rvnLENOVO:rn20CMCTO1WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20CMCTO1WW
dmi.product.version: ThinkPad X250
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.9-2ubuntu1~vivid2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.9-2ubuntu1~vivid2
version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
xserver.bootTime: Fri Oct 16 03:31:10 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 1079
vendor LGD
xserver.version: 2:1.17.1-0ubuntu3.1
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