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Author Topic: can i adjust the sensitivity off the touchpad?  (Read 607 times)

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Offline pepperOS

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can i adjust the sensitivity off the touchpad?
« on: May 19, 2019, 10:20:42 am »
i have some problems with my touchpad. jumpy cursor syndrome.
especially when typing the cursor suddenly is in another sentence/line and i am typing somewhere else.
it is a problem with more types off Dell laptops (look for jumpy cursor Dell and you find many topic in de windows corner after going up in windows versions)
so can i adjust the sensitivity off the touchpad?

this is the output of
Quote
toplab@toplab--E6320 ~ $ xinput --list
⎡ Virtual core pointer                       id=2   [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                 id=4   [slave  pointer  (2)]
⎜   ↳ HID 04d9:0499                              id=10   [slave  pointer  (2)]
⎜   ↳ AlpsPS/2 ALPS DualPoint TouchPad           id=13   [slave  pointer  (2)]
⎜   ↳ AlpsPS/2 ALPS DualPoint Stick              id=14   [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)]
    ↳ Dell WMI hotkeys                           id=11   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard               id=12   [slave  keyboard (3)]
toplab@toplab--E6320 ~ $


Offline murraymint

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Re: can i adjust the sensitivity off the touchpad?
« Reply #1 on: May 19, 2019, 10:22:23 am »
Hi, see if this is a suitable solution:

https://forum.peppermintos.com/index.php/topic,1239.0.html

Offline PCNetSpec

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Re: can i adjust the sensitivity off the touchpad?
« Reply #2 on: May 19, 2019, 01:59:12 pm »
Does running
Code: [Select]
xinput --set-prop "AlpsPS/2 ALPS DualPoint TouchPad" "Synaptics Finger" 32 35 0
make the touchpad less skittish ?

be aware the above won't survive a reboot, but if it works, we can make it permanent.

If not, what's the output from:
Code: [Select]
[code]xinput --list-props "AlpsPS/2 ALPS DualPoint TouchPad"
[/code]



If that DOES fix the skittishness, you can make it permanent by editing
Code: [Select]
gksudo xed /usr/share/X11/xorg.conf.d/70-synaptics.conf
find the section that currently reads
Code: [Select]
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
     MatchDevicePath "/dev/input/event*"
EndSection
and change that section to read:-
Code: [Select]
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
        MatchDevicePath "/dev/input/event*"
        Option "FingerLow" "32"
        Option "FingerHigh" "35"
EndSection



These are MODIFIED instructions from this source:
https://blog.laimbock.com/2014/11/23/howto-fix-a-too-sensitive-touchpad-on-linux/
DO NOT use the instructions from that link directly, you MAY end up with an unbootable system if you save the synaptics.conf file as he suggests.
« Last Edit: May 19, 2019, 02:30:47 pm by PCNetSpec »
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Offline pepperOS

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Re: can i adjust the sensitivity off the touchpad?
« Reply #3 on: May 21, 2019, 08:20:43 am »
well, i have made the change in de synaptics.conf en will try it out for a longer time and will report back.
thanks for the help  ;)

Offline pepperOS

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Re: can i adjust the sensitivity off the touchpad?
« Reply #4 on: May 24, 2019, 09:12:32 am »
it did get better, but if, it could be more less sensitive, because when you are in the flow of writing then suddenly it does happen that the cursor jumps

now

xinput --list-props "AlpsPS/2 ALPS DualPoint TouchPad"
Device 'AlpsPS/2 ALPS DualPoint TouchPad':
   Device Enabled (141):   1
   Coordinate Transformation Matrix (143):   1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
   Device Accel Profile (268):   1
   Device Accel Constant Deceleration (269):   2.500000
   Device Accel Adaptive Deceleration (270):   1.000000
   Device Accel Velocity Scaling (271):   12.500000
   Synaptics Edges (293):   343, 1577, 317, 1148
   Synaptics Finger (294):   32, 35, 0
   Synaptics Tap Time (295):   180
   Synaptics Tap Move (296):   93
   Synaptics Tap Durations (297):   180, 180, 100
   Synaptics ClickPad (298):   0
   Synaptics Middle Button Timeout (299):   75
   Synaptics Two-Finger Pressure (300):   141
   Synaptics Two-Finger Width (301):   7
   Synaptics Scrolling Distance (302):   42, 42
   Synaptics Edge Scrolling (303):   1, 0, 0
   Synaptics Two-Finger Scrolling (304):   0, 0
   Synaptics Move Speed (305):   1.000000, 1.750000, 0.094206, 0.000000
   Synaptics Off (306):   0
   Synaptics Locked Drags (307):   0
   Synaptics Locked Drags Timeout (308):   5000
   Synaptics Tap Action (309):   2, 3, 0, 0, 1, 3, 0
   Synaptics Click Action (310):   1, 1, 0
   Synaptics Circular Scrolling (311):   0
   Synaptics Circular Scrolling Distance (312):   0.100000
   Synaptics Circular Scrolling Trigger (313):   0
   Synaptics Circular Pad (314):   0
   Synaptics Palm Detection (315):   0
   Synaptics Palm Dimensions (316):   10, 100
   Synaptics Coasting Speed (317):   20.000000, 50.000000
   Synaptics Pressure Motion (318):   15, 80
   Synaptics Pressure Motion Factor (319):   1.000000, 1.000000
   Synaptics Resolution Detect (320):   1
   Synaptics Grab Event Device (321):   0
   Synaptics Gestures (322):   1
   Synaptics Capabilities (323):   1, 1, 1, 1, 1, 1, 0
   Synaptics Pad Resolution (324):   29, 22
   Synaptics Area (325):   0, 0, 0, 0
   Synaptics Noise Cancellation (326):   10, 10
   Device Product ID (263):   2, 8
   Device Node (264):   "/dev/input/event7"
« Last Edit: May 24, 2019, 09:15:25 am by pepperOS »

Offline murraymint

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Re: can i adjust the sensitivity off the touchpad?
« Reply #5 on: May 24, 2019, 09:25:24 am »
Does the timeout which disables it while you're typing not work any more? (I linked it in my first reply).


Offline PCNetSpec

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Re: can i adjust the sensitivity off the touchpad?
« Reply #6 on: May 24, 2019, 09:39:39 am »
Yeah, you'd probably be better of disabling the touchpad whilst typing by following the instructions at murraymint's link:
https://forum.peppermintos.com/index.php/topic,1239.0.html

Maybe set the delay (before the touchpad re-activates) to 0.5 seconds though .. personally I think the 2.5 second delay in those instructions is far too long, but each to their own right ;)



iIRC I set it to:
Code: [Select]
syndaemon -i 0.2 -d
for just a fifth of a second delay .. but other people prefer longer.
« Last Edit: May 24, 2019, 09:43:25 am by PCNetSpec »
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Offline pepperOS

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Re: can i adjust the sensitivity off the touchpad?
« Reply #7 on: May 26, 2019, 10:06:00 am »
if i rember it correctly something later on went wrong, but i will try it again, see what happens now ;-)

Offline pepperOS

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Re: can i adjust the sensitivity off the touchpad?
« Reply #8 on: July 10, 2019, 01:28:04 am »
i have now tried it for a long period and it has got a bit better but it is not gone.
i can't figure out what is the reason of this problem other than that i use a mouse and when working i sit on the couch and when typing the mouse is lying on the couch.
when i am typing i sometimes touch the touchpad by accident with my thumb and maybe then the cursor shifts to another place were the mouse pointer is standing

but than again it happens to that when i go over some text with the mouse whitout touching a button it will select anyway and i can only stop that by pushing one of the buttons on the touchpad   ???

Offline Fritz74

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Re: can i adjust the sensitivity off the touchpad?
« Reply #9 on: July 14, 2019, 08:32:05 am »
To prevent accidental input, I usually disable the touchpad, when I am typing a longer text on a laptop:
Get the id of the touchpad with xinput -list.
Then disable it with xinput --disable 11 (if 11 is the number of your touchpad).

Switch between the terminal and your word processor with Alt + Tab.
Re-enable the touchpad with xinput --enable 11.