Status of X250 bug: In comment #29 above, I mentioend that following the install of the latest kernel the LMBS = "Left mouse button sticking" bug remained. But unfortunately the working kernel then stopped working, leaving me with not recourse but to abandon the machine. The X250 is not usable with this but. As I stated in #29 I switched to an old machine. I have many options, and right now I'm using my old X220i. This has a trackpad, which I can either turn on or off in the BIOS, and when it is on in the BIOS I can turn it on and off from linux. The X220 is working fine, and the X250 now has the LMBS 100% of the time, and for all kernels that I boot. I am happy to continue to pursue this, but have sort of lost hope that this will be fixable, without some major new insight(s). I say this with insight I have obtained by comparing the X220i behaviour with that of the X250. The BIOS interaction is different, leading me to believe that the BIOS has a bug. It is not possible to turn off the TP with the X250 BIOS, as I can do with my older X201i, and the X220i that I'm presently using for daily work.
Just to remind you, I upgraded the X250 to Ubuntu 16.04 Beta 2. Now the LTS is out, so I will likely upgrade to that. Right now I'm travelling, so I dont have access to the X250, but when I return home (tomorrow), I will download and boot 4.6-rc4, as you request and post an update. -- 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
