This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.
Please follow the instructions on the wiki page[0]. The first step is to email the appropriate mailing list. If no response is received, then a bug may be opened on bugzilla.kernel.org. Once this bug is reported upstream, please add the tag: 'kernel-bug- reported-upstream'. [0] https://wiki.ubuntu.com/Bugs/Upstream/kernel ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged -- 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/1687738 Title: Synaptics Touchpad recognized as ImPS/2 by kernel Status in linux package in Ubuntu: Triaged Bug description: After updating (16.04), multi-touch features of my touchpad such as two-finger scroll and the ability to turn off touch to tap were broken. I have tried using libinput and synaptics drivers but the touchpad is recognized as an ImPS/2 Synatpics Touchpad, and drivers determined by "pointer catchall" rather than "touchpad". I upgraded to 17.04 to see if the new kernel 4.10 helped, but I have the same problem. Relevant output from cat /proc/bus/input/devices I: Bus=0011 Vendor=0002 Product=0005 Version=0000 N: Name="ImPS/2 Synaptics TouchPad" P: Phys=isa0060/serio1/input0 S: Sysfs=/devices/platform/i8042/serio1/input/input6 U: Uniq= H: Handlers=mouse1 event9 B: PROP=1 B: EV=7 B: KEY=70000 0 0 0 0 B: REL=103 Relevant output from Xorg.0.log [ 6.597] (II) config/udev: Adding input device ImPS/2 Synaptics TouchPad (/dev/input/event9) [ 6.597] (**) ImPS/2 Synaptics TouchPad: Applying InputClass "evdev pointer catchall" [ 6.597] (**) ImPS/2 Synaptics TouchPad: Applying InputClass "libinput pointer catchall" [ 6.597] (**) ImPS/2 Synaptics TouchPad: Applying InputClass "evdev pointer catchall" [ 6.597] (**) ImPS/2 Synaptics TouchPad: Applying InputClass "libinput pointer catchall" [ 6.597] (II) Using input driver 'libinput' for 'ImPS/2 Synaptics TouchPad' [ 6.597] (**) ImPS/2 Synaptics TouchPad: always reports core events [ 6.597] (**) Option "Device" "/dev/input/event9" [ 6.597] (**) Option "_source" "server/udev" [ 6.598] (II) input device 'ImPS/2 Synaptics TouchPad', /dev/input/event9 is tagged by udev as: Mouse [ 6.598] (II) input device 'ImPS/2 Synaptics TouchPad', /dev/input/event9 is a pointer caps [ 6.628] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio1/input/input6/event9" [ 6.628] (II) XINPUT: Adding extended input device "ImPS/2 Synaptics TouchPad" (type: MOUSE, id 16) [ 6.628] (**) Option "AccelerationScheme" "none" [ 6.628] (**) ImPS/2 Synaptics TouchPad: (accel) selected scheme none/0 [ 6.628] (**) ImPS/2 Synaptics TouchPad: (accel) acceleration factor: 2.000 [ 6.628] (**) ImPS/2 Synaptics TouchPad: (accel) acceleration threshold: 4 [ 6.629] (II) input device 'ImPS/2 Synaptics TouchPad', /dev/input/event9 is tagged by udev as: Mouse [ 6.629] (II) input device 'ImPS/2 Synaptics TouchPad', /dev/input/event9 is a pointer caps [ 6.629] (II) config/udev: Adding input device ImPS/2 Synaptics TouchPad (/dev/input/mouse1) [ 6.629] (II) No input driver specified, ignoring this device. [ 6.629] (II) This device may have been added with another device file. Output from xinput ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ Microsoft Microsoft® 2.4GHz Transceiver v7.0 id=11 [slave pointer (2)] ⎜ ↳ Microsoft Microsoft® 2.4GHz Transceiver v7.0 id=12 [slave pointer (2)] ⎜ ↳ ELAN Touchscreen id=13 [slave pointer (2)] ⎜ ↳ ImPS/2 Synaptics TouchPad id=16 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Power Button id=8 [slave keyboard (3)] ↳ Sleep Button id=9 [slave keyboard (3)] ↳ Microsoft Microsoft® 2.4GHz Transceiver v7.0 id=10 [slave keyboard (3)] ↳ Integrated_Webcam_HD id=14 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=15 [slave keyboard (3)] ↳ Dell WMI hotkeys id=17 [slave keyboard (3)] ↳ Microsoft Microsoft® 2.4GHz Transceiver v7.0 id=18 [slave keyboard (3)] ↳ Microsoft Microsoft® 2.4GHz Transceiver v7.0 id=19 [slave keyboard (3)] Note that I am using a wireless mouse and keyboard because although the keyboard and touchpad on my laptop work, the high frequency of jumping around and clicking of the touchpad make it very frustrating to work with the laptop without external devices. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-4.10.0-20-generic 4.10.0-20.22 ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8 Uname: Linux 4.10.0-20-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.4-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: max 2227 F.... pulseaudio /dev/snd/controlC0: max 2227 F.... pulseaudio CurrentDesktop: Unity:Unity7 Date: Tue May 2 16:18:36 2017 HibernationDevice: RESUME=UUID=34be6be0-2ba4-4ffd-9be6-bead8cc16f10 InstallationDate: Installed on 2015-10-06 (574 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Dell Inc. XPS 13 9343 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-20-generic.efi.signed root=UUID=290cdcf1-e310-474d-b7d6-2731653bfe37 ro quiet splash i8042.nomux=1 i8042.reset vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.10.0-20-generic N/A linux-backports-modules-4.10.0-20-generic N/A linux-firmware 1.164 SourcePackage: linux UpgradeStatus: Upgraded to zesty on 2017-05-02 (0 days ago) dmi.bios.date: 07/14/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0310JH dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA05:bd07/14/2015:svnDellInc.:pnXPS139343:pvr:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 13 9343 dmi.sys.vendor: Dell Inc. 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