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This is a fairly new model and I understand support isn't going to be great from the get go.

External mouse does work. I have tried Ubuntu 14.04, 15.10, and 16.04, Mint 17, and Opensuse (Leap and Tumbleweed). All have failed to detect the ALPS touchpad in this laptop. I have tried kernel updates to the newest 4.5 RC7, but it failed to detect the touchpad. (xinput)

I have read others reporting little to no mention of issues with the touchpad. At one point the touchpad did work in Ubuntu 15.10 but after either a kernel update or software update it had stopped working. Even after a fresh reinstall the touchpad failed to work. I can't seem to mimic my 15.10 install to get it working.

Bios on the laptop has been updated to the latest 1.12.

Do I need to file a bug report? Are there any other possible solutions I could try?

user518370
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1 Answers1

9

I found a fix for anyone else who is having this issue.

  1. First get into terminal and type gksudo gedit etc/default/grub.

  2. Next, the grub.cfg file should pop up. Find GRUB_CMDLINE_LINUX="" and within the quotes type in i8042.reset i8042.nomux i8042.nopnp i8042.noloop.

    So it should look like this:

    GRUB_CMDLINE_LINUX="i8042.reset i8042.nomux i8042.nopnp i8042.noloop"

    Hit save.

  3. Next, you need to open up another terminal window and update grub by typing in sudo update-grub and finally restart.

This worked for me on Ubuntu 16.04 daily with 4.5 RC7. Credit goes to MrZackehhSoul.

David Foerster
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user518370
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  • Works in mint 17.3 but Mint doesn't play nice with gedit. You'll end up with a blank .cfg file. So in order to edit grub.cfg, you need to use nano instead. Then you can edit the file from within terminal. – user518370 Mar 14 '16 at 00:48
  • Worked here too. Thanks. Could you link the source?

    Also, there's a missing "/" before "etc"

    sudo gedit /etc/default/grub

     – sitarane Mar 19 '16 at 11:17
  • excellent. I got this issue updating from 1.13 to 1.17 to fix the sticky keys issue with charger plugged in. However I just tried putting in i8042.reset in the kernel command line and that worked. I did it based on some hints from lenovo support that the bios settings should be reset. – r_ahlskog May 09 '16 at 18:03
  • first check if the .Xauthorization file is present in your root directory. For me, there was no such file and it thre an error: Unable to copy the user's .Xauthorization file.

    in this case, run 'touch .Xauthorization' and set r/w permissions and then follow the content of this post. Worked for me!

    [see here: https://sourceforge.net/p/peerguardian/bugs/325/]

     – axolotl May 26 '16 at 15:06
  • Here's more information about this: https://unix.stackexchange.com/questions/28736/what-does-the-i8042-nomux-1-kernel-option-do-during-booting-of-ubuntu – Brandon Kuczenski Dec 15 '21 at 03:15