View Full Version : Upgrading 17.04 results in loss of internal keyboard and trackpad

May 3rd, 2017, 08:27 PM
I'm working with Ubuntu for the first time at work. I've installed Ubuntu 17.04 on an HP Zbook 15 G3, and after a few changes (adding DNS nameservers in /etc/resolv.conf and turning off Hybrid Graphics and Secure boot in the UEFI), everything was working great.

I used the software update application to download a new kernel and other updates that I must admit I ignored. Once the computer restarted, the laptop's keyboard and trackpad ceased working. Plugging in an external USB mouse and keyboard works fine. I note that the internal keyboard and trackpad still work in grub, but that booting into recovery mode in either kernel ( and does not change a thing - the keyboard ceases to work in the recovery mode menu.

Re-installing 17.04 from the USB drive resolved the issue. I then naively upgraded the system again, and the keyboard ceased working again.

I would love some help fixing this, as I am totally unsure how to proceed.

Thank you,


May 5th, 2017, 12:34 AM
If the previous kernel didn't fix the issue ... check in the Software Center for recent updates.

See if an upgraded package was applied that might impact your input devices.


August 10th, 2017, 02:22 PM
I have an HP ZBook 15 G3 as well but I've been using Xubuntu 16.04. Last week, I updated all the packages and since then I've suffered from the very same issue. xinput list doesn't show the laptop's keyboard and trackpad.

August 10th, 2017, 02:39 PM
So, it turns out pnpacpi=off was the culprit. Now it's back to fighting with network and suspend problems, it seems, since this boot setting improved things in those areas quite a bit.