Arch Linux

MrJaqbq

Member

Registered: 2014-08-03

Posts: 2

Touchpad synaptics not recognized since update to kernel 3.15.7-1

Hi everyone,
5 days ago I updated kernel to version 3.15.7-1, since then my touchpad stopped working (my laptop is hp probook 470).
It's gone from /proc/bus/input/devices and nothing about touchpad/synaptics apperars in xorg log,

Already tried updating to kernel 3.15.8-1, reinstalling xf86-input-evdev and xf86-input-synaptics but this changed nothing ;/

Current kernel version matches package:

$ pacman -Q linux && uname -r
linux 3.15.8-1
3.15.8-1-ARCH

I'm sure this not a hardware problem, because touchpad works fine on fedora liveCD and after downgrading kernel to 3.15.5-2.

Xorg log before update:
http://pastebin.com/af5Qaxpv

Xorg log after update:
http://pastebin.com/9fAKxkyp

My /usr/share/X11/xorg.conf.d/50-synaptics.conf, same as in /etc/X11/xorg.conf.d/:
http://pastebin.com/KRDvbZVk

cat /proc/bus/input/devices
http://pastebin.com/yzFvACdN

lsusb

Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 004: ID 04ca:7022 Lite-On Technology Corp. 
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci
http://pastebin.com/DnvYKdQC

dmesg -t
http://pastebin.com/DD9mMqnQ

I don't know what to do now ;/ . Is this an kernel issue or I'm missing something?

Last edited by MrJaqbq (2014-08-03 18:32:25)

mcloaked

Member

From: Yorkshire, UK

Registered: 2012-02-02

Posts: 1,360

Re: Touchpad synaptics not recognized since update to kernel 3.15.7-1

Is it possible that your touchpad stopped after the update to xorg-server 1.16?

The pacman log file should show:

[2014-07-29 12:37] [ALPM] warning: /etc/X11/xorg.conf.d/10-evdev.conf saved as /etc/X11/xorg.conf
.d/10-evdev.conf.pacsave
[2014-07-29 12:37] [ALPM-SCRIPTLET] >>> xorg-server has now the ability to run without root right
s with
[2014-07-29 12:37] [ALPM-SCRIPTLET]     the help of systemd-logind. xserver will fail to run if n
ot launched
[2014-07-29 12:37] [ALPM-SCRIPTLET]     from the same virtual terminal as was used to log in.
[2014-07-29 12:37] [ALPM-SCRIPTLET]     Without root rights, log files will be in ~/.local/share/
xorg/ directory.
[2014-07-29 12:37] [ALPM-SCRIPTLET] 
[2014-07-29 12:37] [ALPM-SCRIPTLET]     Old behavior can be restored through Xorg.wrap config fil
e.
[2014-07-29 12:37] [ALPM-SCRIPTLET]     See Xorg.wrap man page (man xorg.wrap)

Any chance it is due to /etc/X11/xorg.conf.d/10-evdev.conf saved as /etc/X11/xorg.conf.d/10-evdev.conf.pacsave ? If so then rename the pacsave file back to 10-evdev.conf and reboot.

Last edited by mcloaked (2014-08-04 16:12:04)

---

Mike C

MrJaqbq

Member

Registered: 2014-08-03

Posts: 2

Re: Touchpad synaptics not recognized since update to kernel 3.15.7-1

Unfortunetely no, there was no 10-evdev.conf and any pacsave/pacnew versons in /etc/X11/xorg.conf.d/ and /usr/share/X11/xorg.conf.d before, it was created after last xorg update. Also, touchpad works fine with xorg-server 1.16 on 3.15.5-2 kernel with this configuration files, so I guess X11 is not the problem.

I also tried removing 10-evdev.conf, but it caused even keyboard to stop working.

My pacman.log from that day:
http://pastebin.com/7sz40Tr7