Keyboard not working with kernel 6.4.8-arch1-1 (Arch Linux)

[Drakrig]

Describe the bug
After system update from kernel version 6.3.9-arch1-1 to 6.4.8-arch1-1 keyboard won't work after reboot.

To Reproduce
Steps to reproduce the behavior:

1. Update system with pacman or aura (updated packages specified in updated_packeges.txt)
2. Reboot

Expected behavior
Keyboard should work, but isn't.

Desktop

• OS: Arch Linux
• Kernel version: archlinux 6.4.8-arch1-1

** Log **
Attached installation, rollback and dmesg logs. Also include list of updated packages
dmesg.log
install_log.log
roll_back.log
updated_packages.log

Fix (temp solution)

1. Attach external keyboard
2. Open terminal
3. run 'sudo pacman -U file://linux-headers-6.3.9.arch1-1-x86_64.pkg.tar.zst file://linux-6.3.9.arch1-1-x86_64.pkg.tar.zst' (you may try to use another cashed linuxheader and linux from your /var/cache/pacman/pkg folder)

[savvadesogle]

Same on Fedora 38 (6.4.7-200.fc38.x86_64). After update from 6.4.6 -> 6.4.7.
On 6.4.6 kernel a keyboard working.

dmesg: ucsi_acpi USBC000:00: error -ETIMEDOUT: PPM init failed

[anperus]

ucsi_acpi USBC000:00: error -ETIMEDOUT: PPM init failed

I have this message on all linux distributions: ubuntu 23.04, manjaro, fedora. And with kernel 6.1 - 6.4

[savvadesogle]

That was useful for me (on Fedora): https://bugzilla.redhat.com/show_bug.cgi?id=2229165#c4

Now keyboard works on test kernel "6.4.8-200.amdkbd.fc38.x86_64" from instruction.