This bug is missing log files that will aid in diagnosing the problem. >From a terminal window please run:
apport-collect 1634593 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 -- 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/1634593 Title: Elantech Touchpad detects as PS/2 BYD TouchPad or as a PS/2 generic mouse Status in linux package in Ubuntu: Incomplete Bug description: I have an Elantech Touchpad installed on my Lenovo Y700 laptop and I can't make it work properly by any means. I tried to switch between libinput and synaptics but this bug seems to affect any driver. Usually, after a system upgrade all works properly till the moment I plug in external mouse (Razer DeathAdder 3500DPI). After that touchpad detected as either PS/2 BYD or PS/2 generic mouse or sometimes PS/2 Elantech touchpad. After some 5-6 reboots without plugging in external mouse the touchpad finally starts to detect it as ETPS/2 Elantech touchpad. Reloading psmouse module seems to cause no effect (or it does yet after a minute touchpad stops working for a moment and then switches to PS/2 in xinput). Multitouch stops working as well as tapping with two fingers. I tried almost all the possible workarounds involving adding boot options, installing elantech driver fixes etc. Help is appreciated. The output of xinput as for now: $ xinput ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ PS/2 BYD TouchPad id=14 [slave pointer (2)] lsinput /dev/input/event14 bustype : BUS_I8042 vendor : 0x2 product : 0x1 version : 99 name : "PS/2 BYD TouchPad" phys : "isa0060/serio1/input0" bits ev : EV_SYN EV_KEY EV_REL UPDATE: Seems that forcing the psmouse to detect the touchpad as elantech helps to fix problem temporarily. But it works only from time to time: $ sudo rmmod psmouse $ sudo modprobe psmouse force="elantech" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1634593/+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