Device: Lenovo Ideapad 320-15ABR OS: Ubuntu 17.04 Kernel: 4.13.0-041300-generic When I tried fresh installations of Ubuntu 16.04, 17.04, and 17.10 beta daily build, my trackpad was undetected and completely unresponsive: https://pastebin.com/raw/qdrjg2xD Tried several fixes on the ubuntu forums and from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1708852 but the only thing that has seemingly made any progress was installing the latest mainline kernels. After installing 4.13.0-041300-generic (released Sept 3, 2017), the trackpad is not identified in the xinput results: https://pastebin.com/raw/j8XwhV1A My results are identical for the daily kernel build linux-image-4.13.0-999-generic_4.13.0-999.201709062201 (released Sept 7, 2017). The issue now is that the trackpad only lasts a little over 5 seconds after starting up before it stops working entirely. You can see this happen in the syslog: https://pastebin.com/raw/TgtAsXjh Here is a snipped down version of the syslog to what I'm assuming is relevant. I believe the trackpad is only working when we see the error messages then stops once those end: https://pastebin.com/raw/ckMteHhH Though I could be missing something important. I suspect the issue is similar to this bug: https://pastebin.com/raw/ckMteHhH but I have no idea how to attempt to implement this guy's fix.
Whoops, the last link should be this proposed patch: https://bugzilla.kernel.org/show_bug.cgi?id=196761
I have a Lenovo IdeaPad 320-15ABR as well, however my touchpad is recognized as Synaptics TM3336-001, once I recompile my kernel with CONFIG_PINCTRL_AMD=y. See my ticket here: https://bugzilla.kernel.org/show_bug.cgi?id=196985 Can you attach the output of `udevadm info -e` to this ticket? Also, the output of `dmidecode` would be interesting as well. Run both of these commands as root.
I built a kernel in [1], please try it out. [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1732056