This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1736017 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: artful -- 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/1736017 Title: trackpad looses sync and hangs -- 16.10 worked, 17.10 does not Status in linux package in Ubuntu: Incomplete Bug description: I run Ubuntu 17.10 (Kubuntu) on a Thinkpad Yoga260 notebook. The trackpad hangs regularly, typically after a few minutes of use. dmesg reports "lost sync bytes". Interestingly, this error already occurred in 16.04 (there are many reports about this, e.g. https://askubuntu.com/questions/922092/lifebook-e546-touchpad-on- ubuntu-16-04), but my notebook works fine with 16.10 which I used for about a year without any problems. Now that I updated it to 17.10 it occurs again. Both 16.10 and 17.10 are now installed in parallel, but the error only manifests when I boot into the latter. I have tried proto=imps and proto=bare (module psmouse), but this does not make a difference. I report this here because this might be some kind of regression (or coincidence). Output from dmesg: The trackpad detected es one from elantech: [ 1.952397] psmouse serio1: elantech: assuming hardware version 4 (with firmware version 0x4d1f04) [ 1.967272] psmouse serio1: elantech: Synaptics capabilities query result 0x80, 0x14, 0x0c. [ 1.982603] psmouse serio1: elantech: Elan sample query result 04, 01, 85 [ 802.847308] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 802.854537] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 802.862926] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 802.870528] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 802.877890] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 802.877899] psmouse serio1: issuing reconnect request [ 805.772533] psmouse serio1: elantech: PS/2 packet [54 80 80 36 00 00] [ 1008.218685] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 1008.226641] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 1008.234590] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 1008.242843] psmouse serio1: elantech: PS/2 packet [75 31 52 96 44 19] [ 1008.242851] psmouse serio1: Touchpad at isa0060/serio1/input0 - driver resynced. [ 1008.251339] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 1008.258971] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 1008.265958] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 1008.273071] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 1008.280932] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6 [ 1008.280940] psmouse serio1: issuing reconnect request etc... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736017/+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