I'm on an Acer Aspire E5 and I haven't been able to get my laptop's onboard keyboard and trackpad to work, although the trackpad is detected as a Synaptics, and the keyboard is showing as an AT Translated Set 2 keyboard. External mouse and keyboard works fine, and are what I am currently using.
I already checked whether I'm on Synaptics or Libinput, although I was fairly certain that upgrade happened a few years ago, and I am definitely using libinput, which I reinstalled, to no avail. I've made sure that the trackpad is enabled in the system settings, and I've switched it from advanced mode to basic in the BIOS, which for some seemed to have been the solution
I'd like to note that the onboard keyboard works fine on boot, and its only when X is loaded (i'm assuming) that it fails.
I have just recently installed Kubuntu on this machine after grappling with the same issue on Arch, thinking i had done something wrong in the installation. On Arch, I had no trouble using the keyboard on the TTY and live-USB (Arch and Ubuntu), but when i installed X for a GUI, they both stopped working.
What should my next steps be?