Christopher, Here is an important update: When you sent this email on Jan 21, my X250 was back in Memphis being repaired (A problem with the screen blanking off, randomly). Thus I couldn't test anything at that time.
I now have the X250 back in my hands and the screen problems is fixed. However, today (Feb 4, 2016) the mouse sticking problem has returned!!! This occured immedideatly following a system update, which required a reboot. Following the reboot, the mouse sticking problem returned. I'm not sure how to evaluate the situation given the random return of the problem. I verified that the two modifications were in place 1) /etc/modprobe.d/psmouse.conf options psmouse proto=imps 2) /usr/share/X11/xorg.conf.d/90-evdev.conf Section "InputClass" Identifier "Touchpad/TrackPoint" MatchProduct "PS/2 Synaptics TouchPad" MatchDriver "evdev" Option "EmulateWheel" "1" Option "EmulateWheelButton" "2" Option "Emulate3Buttons" "0" Option "XAxisMapping" "6 7" Option "YAxisMapping" "4 5" EndSection 3) Reboot but with these modifications, the left mouse button now sticks on about once every 20 clicks (a rough estimate), rendering the computer virtually useless for everyday use. This problem was resolved since my first posting, but has now creeped back to haunt me. Any advice you can give me would be appreciated. My previous conclusion was that the synaptics driver is the source of this problem. There is evidence that it is now present, but I'm not in a position to spend a day debugging this right now. When I boot the computer, before I login, the synaptics pad is live. I have turned it off in the BIOS, yet it lives following a boot. Once I have logged in, it is turned off. I suspect this is a clue, but I dont know how to read it. The situation is bad enough that I may need to switch back to my previous X220i computer, which is an equally bad alternative. The X220i runs 14.04 LS, and does not have the mouse-sticking problem, as it does not have the synaptics driver (as best I know). The X250 is using Ubuntu 15.04 Linux near 4.2.0-27-generic #32-Ubuntu SMP Fri Jan 22 04:49:08 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux I figured out how to boot the X250 from the X220i hard drive using a USB adapter, which seems a useful debugging technique. I hope my summary above is both correct and adequate. On 01/21/2016 06:41 PM, Christopher M. Penalver wrote: > Jont Allen, to clarify, for your WORKAROUND do you only need to perform: > 1) /etc/modprobe.d/psmouse.conf > Add to this file > options psmouse proto=imps > > or do you have to do 2) also? > > ** Changed in: linux (Ubuntu) > Status: Confirmed => Incomplete > -- 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: Incomplete 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp