Arch Linux

pietro88

Member

Registered: 2011-12-08

Posts: 4

Touchpad issue

Hi guys,
I've been having this problem for some months now, and I can't seem to get over it (it started after a system upgrade): if I move the pointer with a short movement as soon as i stop my finger the touchpad taps. It doesn't happen if i make wider movements. It happens while i'm two-finger scrolling too: if the movement is small, when i stop the touchpad does a two-finger click (right click mouse in my case).
I disabled the gnome 3 mouse daemon in the dconf.editor so that the synatics.conf was respected, and here is how i configured my /etc/X11/xorg.conf.d/10-synaptics.conf:

Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Option "FastTaps" "1"
        Option "VertTwoFingerScroll" "on"
        Option "HorizTwoFingerScroll" "on"
        Option "TapButton1" "1"
        Option "TapButton2" "3"
        Option "TapButton3" "2"
EndSection

and this is the output of xinput list:

 
pietro@x420 ~]$ xinput list
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad              	id=12	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Power Button                            	id=6	[slave  keyboard (3)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Power Button                            	id=8	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
    ↳ WebCam SCB-0340N                        	id=10	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=11	[slave  keyboard (3)] 

I noticed that if i make some random adjustments using Gpointing Device Settings under the Tapping tab (doesn't matter what, i just move some indicators and then i bring them back the way they were when i started) the problem vanishes, but every time i turn the pc on again this problem is back. I'm kinda fed up of doing this every time I turn my computer on...

Any idea? Thank you

silverwind

Member

Registered: 2012-02-07

Posts: 12

Re: Touchpad issue

There's a MaxTapMove value in Synaptics. I never had to set it personally, but it sounds like it could solve your problem. Another option that might help is disabling coasting (which I remember gave me some troubles after a patch):  Option "CoastingSpeed" "0" in 10-synaptics.conf.