Arch Linux

wasutton3

Member

Registered: 2011-03-19

Posts: 27

Thinkpad T440p Keyboard not working. [SOLVED]

I just did a pacman -Syu and rebooted. Upon reboot, my keyboard no longer worked. I plugged in an external keyboard via usb3 and via usb2 and at no point was I able to type anything.

I've booted a live USB and the hardware works.

Where should I begin looking for a solution?

Last edited by wasutton3 (2015-11-15 18:12:31)

bibek22

Member

From: Nepal

Registered: 2015-09-10

Posts: 90

Re: Thinkpad T440p Keyboard not working. [SOLVED]

Does it boot up properly? I mean are you prompted to the login shell or something else?

wasutton3

Member

Registered: 2011-03-19

Posts: 27

Re: Thinkpad T440p Keyboard not working. [SOLVED]

Yes. It boots properly and gets to SLiM.

I cannot use ctrl-alt-Fx to get to a different TTY.

As far as I can see during the brief bootup, nothing fails.

wasutton3

Member

Registered: 2011-03-19

Posts: 27

Re: Thinkpad T440p Keyboard not working. [SOLVED]

Followup. It seems to be a problem with SLiM.

I disabled it through systemctl via a chroot and was able to reboot and log in without an issue.

I'm leaving this open because there may be a different underlying bug.

EDIT: its not related to slim. Its an issue with X.

Last edited by wasutton3 (2015-11-15 17:40:26)

wasutton3

Member

Registered: 2011-03-19

Posts: 27

Re: Thinkpad T440p Keyboard not working. [SOLVED]

Alright. I solved it thanks to Scimma on the IRC channel.

The problem seems to occur when older modifications (that are no longer needed) are implemented for the touchpad modification.

The solution is to uninstall these older packages and to install/upgrade xf86-input-evdev

I'm marking it solved, because it is.

pdr

Member

Registered: 2015-11-30

Posts: 2

Re: Thinkpad T440p Keyboard not working. [SOLVED]

Can you please tell me what were the packages causing problems? I'm having a similar issue myself and I can't figure out what's the root cause.

wasutton3

Member

Registered: 2011-03-19

Posts: 27

Re: Thinkpad T440p Keyboard not working. [SOLVED]

I uninstalled my AUR version of xf86-input-evdev and installed the latest version from the repositories.

pdr

Member

Registered: 2015-11-30

Posts: 2

Re: Thinkpad T440p Keyboard not working. [SOLVED]

For anyone else having the same problem and wasutton3's solution not working for them, I've fixed it by adding i8042.nomux=1 to kernel parameters. Suggestion taken from here: https://bugs.freedesktop.org/show_bug.cgi?id=88951