Arch Linux

KiYugadgeter

Member

Registered: 2020-10-22

Posts: 15

Keyboard and touchpad stopped working after kernel update to 6.15.1

My laptop's keyboard and touchpad don't work after kernel update to 6.15.1.
External USB keyboard and mouse are work fine even 6.15.1.
(ThinkPad X13 Gen1 AMD)

journalctl log for 6.15.1:
http://0x0.st/8Emp.txt

journalctl log for 6.14.9 (it works):
https://0x0.st/8EmW.txt

What is the cause of problem?

Last edited by KiYugadgeter (2025-06-11 03:27:35)

KiYugadgeter

Member

Registered: 2020-10-22

Posts: 15

Re: Keyboard and touchpad stopped working after kernel update to 6.15.1

"6月 10 21:53:57 kiyupadx13 kernel: input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input11" doesn't exist on 6.15.1 log.
Is it a bug around device lookup?

gromit

Package Maintainer (PM)

From: Germany

Registered: 2024-02-10

Posts: 1,139

Website

Re: Keyboard and touchpad stopped working after kernel update to 6.15.1

Can you confirm that purely downgrading the kernel fixes this issue?

sudo pacman -U https://archive.archlinux.org/packages/l/linux/linux-6.14.arch1-1-x86_64.pkg.tar.zst

Also if you want you could check if the latest release candidate already fixes the issue:

sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-6.16rc1-1-x86_64.pkg.tar.zst

Also something that is worth noting is that the module for i8042 has been changed to be builtin, so maybe that is also something that might require further investigation: https://gitlab.archlinux.org/archlinux/ … issues/142

KiYugadgeter

Member

Registered: 2020-10-22

Posts: 15

Re: Keyboard and touchpad stopped working after kernel update to 6.15.1

I have tried your pkgbuild.com kernel, it made keyboard and touchpad work correctly again.
What is the difference between your pkgbuild kernel and arch vanilla linux kernel?