I used to have the jumpiness problem too. The fix I found was installing kernel 19.0 via ukuu. You don't even have to be running that kernel. Just installing it fixed the erratic behavior of the touchpad.
-- 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/1778087 Title: ELAN1200 touchpad jumps around and disconnects Status in linux package in Ubuntu: Confirmed Bug description: This is on an ASUS GL503VD laptop and would probably affect other ASUS laptops equipped with the ELAN1200 touchpad. I am on Kernel 4.17.2 because older kernels did not enable the touchpad at all(It was just unrecognized or i2c-hid stopped the computer from booting) The touchpad works but it has erratic behaviour and disconnects randomly. After it disconnects the only way to bring it back is to `modprobe -r hid-multitouch && modprobe hid-multitouch` Libinput and synaptics can handle the touchpad though I found synaptics to be more stable. dmesg gets spammed with this whenever I move the touchpad: [timestamp] i2c_hid i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535) I tried to compile: https://github.com/mishurov/linux_elan1200_touchpad Because from what I understand the "jumpy/disconnect" problem is associated to the incomplete reports and Mishurov managed to mitigate those. Unfortunately some symbols were deprecated in kernel 4.17.2 and it did not compile for my system. While I can use my touchpad as is right now, and "restart" it with modprobe when needed, it would be nice to have it function bug-free. (Right after I typed this my touchpad disconnected and I needed to modprobe again, I am considering making a cronjob for that) Let me know if anything else is needed. Will wait for an apport collection to add log files. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-06-10 (11 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_CA.UTF-8 SHELL=/bin/bash Tags: bionic Uname: Linux 4.17.2 x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1778087/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp