Arch Linux

Description:
After upgrade to 1.17.4-2 on a ThinkPad T440s the keyboard freezes. Not only the built-in keyboard doesn't work anymore, even USB-connected keyboards freeze.

As soon as an X-org session is started (in my case sddm), the keyboard literally freezes (confirmed by NumLock-LED). Downgrading xorg-server to 1.17.4-1 and keeping all other packages to the most recent on Nov 7th (19:15 GMT+1) fixes the issue.

Additional info:
Same as in bug #46997 - but with extra/xf86-input-evdev. Had to open a new bug report, because I didn't get the chance to confirm with official packages.

$ yaourt -Qs xorg
extra/xf86-input-evdev 2.10.0-1 (xorg-drivers xorg)
X.org evdev input driver
extra/xf86-input-synaptics 1.8.2-2 (xorg-drivers xorg)
Synaptics driver for notebook touchpads
extra/xf86-video-intel 1:2.99.917+478+gdf72bc5-2 (xorg-drivers xorg)
X.org Intel i810/i830/i915/945G/G965+ video drivers
extra/xorg-bdftopcf 1.0.5-1 (xorg xorg-apps)
Convert X font from Bitmap Distribution Format to Portable Compiled Format
extra/xorg-font-util 1.3.1-1 (xorg-fonts xorg)
X.Org font utilities
extra/xorg-font-utils 7.6-4
Transitional package depending on xorg font utilities
extra/xorg-fonts-alias 1.0.3-1
X.org font alias files
extra/xorg-fonts-encodings 1.0.4-4 (xorg-fonts xorg)
X.org font encoding files
extra/xorg-fonts-misc 1.0.3-4
X.org misc fonts
extra/xorg-iceauth 1.0.7-1 (xorg-apps xorg)
ICE authority file utility
extra/xorg-luit 1.1.1-2 (xorg xorg-apps)
Filter that can be run between an arbitrary application and a UTF-8 terminal emulator
extra/xorg-mkfontdir 1.0.7-2 (xorg xorg-apps)
Create an index of X font files in a directory
extra/xorg-mkfontscale 1.1.2-1 (xorg-apps xorg)
Create an index of scalable font files for X
extra/xorg-server 1.17.4-1 (xorg)
Xorg X server
extra/xorg-server-common 1.17.4-2
Xorg server common files
extra/xorg-server-devel 1.17.4-2
Development files for the X.Org X server
extra/xorg-server-utils 7.6-4
Transition package depending on xorg server utilities
extra/xorg-server-xvfb 1.17.4-2
Virtual framebuffer X server
extra/xorg-sessreg 1.1.0-1 (xorg-apps xorg)
Register X sessions in system utmp/utmpx databases
extra/xorg-setxkbmap 1.3.1-1 (xorg-apps xorg)
Set the keyboard using the X Keyboard Extension
extra/xorg-util-macros 1.19.0-1
X.Org Autotools macros
extra/xorg-utils 7.6-9
Transition package depending on xorg utils
extra/xorg-xauth 1.0.9-1 (xorg-apps xorg)
X.Org authorization settings program
extra/xorg-xbacklight 1.2.1-1 (xorg-apps xorg)
RandR-based backlight control application
extra/xorg-xcmsdb 1.0.5-1 (xorg-apps xorg)
Device Color Characterization utility for X Color Management System
extra/xorg-xdpyinfo 1.3.2-1 (xorg-apps xorg)
Display information utility for X
extra/xorg-xdriinfo 1.0.5-1 (xorg-apps xorg)
Query configuration information of DRI drivers
extra/xorg-xev 1.2.2-1 (xorg-apps xorg)
Print contents of X events
extra/xorg-xgamma 1.0.6-1 (xorg-apps xorg)
Alter a monitor's gamma correction
extra/xorg-xhost 1.0.7-1 (xorg-apps xorg)
Server access control program for X
extra/xorg-xinit 1.3.4-3
X.Org initialisation program
extra/xorg-xinput 1.6.2-1 (xorg-apps xorg)
Small commandline tool to configure devices
extra/xorg-xkbcomp 1.3.1-1 (xorg-apps xorg)
X Keyboard description compiler
extra/xorg-xlsatoms 1.1.2-1 (xorg-apps xorg)
List interned atoms defined on server
extra/xorg-xlsclients 1.1.3-1 (xorg-apps xorg)
List client applications running on a display
extra/xorg-xmessage 1.0.4-2
Display a message or query in a window
extra/xorg-xmodmap 1.0.9-1 (xorg-apps xorg)
Utility for modifying keymaps and button mappings
extra/xorg-xprop 1.2.2-1 (xorg-apps xorg)
Property displayer for X
extra/xorg-xrandr 1.4.3-1 (xorg-apps xorg)
Primitive command line interface to RandR extension
extra/xorg-xrdb 1.1.0-1 (xorg-apps xorg)
X server resource database utility
extra/xorg-xrefresh 1.0.5-1 (xorg-apps xorg)
Refresh all or part of an X screen
extra/xorg-xset 1.2.3-1 (xorg-apps xorg)
User preference utility for X
extra/xorg-xsetroot 1.1.1-2 (xorg-apps xorg)
Classic X utility to set your root window background to a given pattern or color
extra/xorg-xvinfo 1.1.3-1 (xorg-apps xorg)
Prints out the capabilities of any video adaptors associated with the display that are accessible through the X-Video extension
extra/xorg-xwininfo 1.1.3-1 (xorg-apps xorg)
Command-line utility to print information about windows on an X server


Steps to reproduce:
-) Upgrade to 1.17.4-2
-) Reboot
-) No login through sddm possible, because there is no keyboard working (only mouse/touchpad works, trackpoint doesn't)
-) Boot Live-CD to disable sddm.service
-) Reboot
-) Keyboard works until you start sddm.service
-) Downgrade xorg-server to 1.17.4-1
-) Everything works fine again