@Paul When the touchpad stuttered, did you see anything like 'overhead' or 'throttled' in dmesg?
-- 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/1590590 Title: Touchpad not recognized on Dell Latitude E7470 Ultrabook Status in linux package in Ubuntu: Triaged Status in systemd package in Ubuntu: New Status in xserver-xorg-input-synaptics package in Ubuntu: Confirmed Bug description: Expected: Touchpad settings available in Mouse & Touchpad Settings dialog Actual result: Touchpad settings missing entirely Details: The touchpad on my Dell Ultrabook (Latitude E7470) functions mostly. The settings for the touchpad are not available at all in the Mouse and Touchpad settings (see http://i.imgur.com/YRGiOrj.png). Two-finger scrolling works as expected except it's using "Natural Scrolling" by default and there is no way to change it. xinput list does not display a touchpad at all: ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ ELAN Touchscreen id=11 [slave pointer (2)] ⎜ ↳ ImPS/2 Generic Wheel Mouse id=13 [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)] ↳ Integrated_Webcam_FHD id=10 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)] ↳ Dell WMI hotkeys id=14 [slave keyboard (3)] ↳ DELL Wireless hotkeys id=15 [slave keyboard (3)] /proc/bus/input/devices lists the device as a "Generic Wheel Mouse" Output of `lsb_release -rd`: Description: Ubuntu 16.04 LTS Release: 16.04 xserver-xorg-input-synaptics version information: xserver-xorg-input-synaptics: Installed: 1.8.2-1ubuntu3 Candidate: 1.8.2-1ubuntu3 Version table: *** 1.8.2-1ubuntu3 500 500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1590590/+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