kernel-packages team mailing list archive
-
kernel-packages team
-
Mailing list archive
-
Message #175142
[Bug 1506817] Re: left TPP/2 IBM TrackPoint "sticks on" randomly (X250 15.04)
Status of left mouse bug sticking on X250:
I am trying to find a way to put my X250 back in service, to replace the
X220i that I fell back to given the serious nature of the LMSB (LMBS =
"Left mouse button sticking")
1) By switching to a logitech USB mouse I am able to work on the
machine.
2) I turned off the TrackPoint (red eraser head mouse) and the TrackPad
in the BIOS. However even with the latest BIOS installed (see posting
#26 above).
Very important: When the trackpoint and trackpad are turned off in the BIOS, they are not disabled until I login.
This is distinct from the behavior of the X220i for which turning off the TrackPad disables it upon reboot (as it should).
Conclusion: There is a bug in the BIOS in that the settings for the
TrackPad and TrackPoint following a boot, are ignored.
3) No combination of new kernels seems to have any effect on the LMBS
bug. It seem likely to me that the issue is in the synaptics driver.
This driver works fine on the X220i and the X201 (These are older
laptops that I have been using after I retired the X250 from service,
due to the LMBS problem made the laptop unuseable).
4) When I use the X250 with the Logitech USB mouse, I am able to work (I
dont like taking my hands off the keyboard to reach for the mouse, but
the LMBS makes using the TrackPoint unuseable, so it must be turned off)
5) There seems to be a new bug with the latest kernels. The screen
randomly flashes for a fraction of a second. This happens about every 20
seconds, on average. Sometimes it happens every 5 seconds. This blink of
the backlight is most irrititating. I dont think I can get used to this
distraction as the screen is very bright, and the blink is impossible to
ignore. This started happening with the newer kernels. I dont know
exactly when, maybe somewhere around 4.5.
6) I have upgraded the OS to 16.04LTS. All of the above comments apply
to 16.04LTS.
7) For daily use I will still be using X220i but at least I can work on
the machine as long as I use the Logitech USB mouse, and can tolerate
the blinking. This comment was written using the X250 in this mode. The
blinking is giving me a headache!
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
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
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1506817/+subscriptions