apport information ** Tags added: apport-collected xenial
** Description changed: 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" + --- + ApportVersion: 2.20.1-0ubuntu2.1 + Architecture: amd64 + CurrentDesktop: Unity + DistroRelease: Ubuntu 16.04 + InstallationDate: Installed on 2016-08-27 (52 days ago) + InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) + Package: linux (not installed) + Tags: xenial + Uname: Linux 4.6.0-040600-generic x86_64 + UnreportableReason: The running kernel is not an Ubuntu kernel + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True ** Attachment added: "JournalErrors.txt" https://bugs.launchpad.net/bugs/1634593/+attachment/4763378/+files/JournalErrors.txt -- 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: Confirmed 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" --- ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2016-08-27 (52 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) Package: linux (not installed) Tags: xenial Uname: Linux 4.6.0-040600-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True 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
