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#51 2010-12-20 19:41:21

jeroenh
Member
Registered: 2010-02-11
Posts: 9

Re: Touchpad problem since kernel update

dptkby wrote:

Please try this:

xinput --set-prop "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Pressure" 280

This fix works for me! Thanks.

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#52 2010-12-27 23:37:32

pera
Member
Registered: 2010-12-02
Posts: 3

Re: Touchpad problem since kernel update

Hi, I want to share my xorg config to solve this problem (xinput is not the best approach ;P)

so, on /etc/X11/xorg.conf you will find something like this:

  1 Section "ServerLayout"
  2     Identifier     "X.org Configured"
  3     Screen      0  "Screen0" 0 0
  4     InputDevice    "Mouse0" "CorePointer"
  5     InputDevice    "SynapticsTouchpad" "SendCoreEvents"
  6     InputDevice    "Keyboard0" "CoreKeyboard"
  7 EndSection
(...)

Remove (or comment) line 4 and 5, also you may remove the respective Section "InputDevice"s.
You don't want this because you have /etc/X11/xorg.conf.d/10-synaptics.conf so lets add some options there, this is my configuration (I've an Acer AS1410 laptop):

  1 Section "InputClass"
  2         Identifier "SynapticsTouchPad"
  3         Driver "synaptics"
  4         MatchIsTouchpad "on"
  5         MatchDevicePath "/dev/input/mouse*"
  6         Option "TapButton1" "1"
  7         Option "TapButton2" "2"
  8         Option "TapButton3" "3"
  9         Option "EmulateTwoFingerMinZ" "50"
 10         Option "EmulateTwoFingerMinW" "10"
 11         Option "AccelFactor" "0.01"
 12         Option "MinSpeed" "1.3"
 13         Option "MaxSpeed" "1.9"
 14 EndSection

Thats all, you only need to restart X smile

ps: check /var/log/Xorg.0.log if something is not working

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#53 2010-12-28 01:05:34

neutrix
Member
From: Bristol, UK
Registered: 2009-08-29
Posts: 62
Website

Re: Touchpad problem since kernel update

Thanks pera, this seems to be good enough to work as a permanent fix for me. It works great. However, is there still an underlying problem to solve here? Is the fact that the wrong defaults are set a problem in the kernel, or just a side effect of the configuration being incorrect on arch for our hardware? If it is just a configuration issue then I can mark the thread as solved.

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#54 2011-03-15 09:09:19

nordmoen
Member
Registered: 2010-09-25
Posts: 37

Re: Touchpad problem since kernel update

After the latest Xorg release, I'm having some difficulty again. I have the same synaptics.conf as described above, but it doesn't seem to work. Scroll on the side of the touchpad doesn't work either

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#55 2011-03-15 10:46:32

neutrix
Member
From: Bristol, UK
Registered: 2009-08-29
Posts: 62
Website

Re: Touchpad problem since kernel update

I haven't done the xorg update yet, as I am at work and don't want to mess up my laptop before I finish. I'll do the update tonight and see if I have the same problem, then I'll get back to you.

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#56 2011-03-15 16:11:19

neutrix
Member
From: Bristol, UK
Registered: 2009-08-29
Posts: 62
Website

Re: Touchpad problem since kernel update

I have just upgraded to the latest Xorg release, and I still don't have the touchpad issue. No problems here for me, so I doubt that it is the same issue as the one we had here originally which is fixed by the above patch.

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#57 2011-03-15 16:22:03

nordmoen
Member
Registered: 2010-09-25
Posts: 37

Re: Touchpad problem since kernel update

Ok, then I'm sorry for bumping this thread, thought it might have been the same issue.

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#58 2011-03-30 14:11:33

ValdikSS
Member
Registered: 2011-03-30
Posts: 31

Re: Touchpad problem since kernel update

I had the same issue. Uncommening community-testing and testing in pacman.conf and pacman -Syu solved that for me.

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