Xorg (latest from ports) and no mouse movement

[Michael Gmelin]

On Wed, 16 Dec 2020 14:55:44 +0100
Matthias Apitz <guru at unixarea.de> wrote:

> El día miércoles, diciembre 16, 2020 a las 02:55:44p. m. +0300,
> Vladimir Kondratyev escribió:
> 
> > On 16.12.2020 14:28, Matthias Apitz wrote:  
> > > El día jueves, diciembre 10, 2020 a las 09:03:02p. m. +0300,
> > > Vladimir Kondratyev escribió: 
> > >>> In /etc/sysctl.conf I have for cyapa TP
> > >>>
> > >>> debug.cyapa_enable_tapclick=3
> > >>> debug.cyapa_tapclick_max_ticks=20
> > >>>
> > >>> Maybe this could be related.
> > >>>  
> > >> What types of press did you try? Taps or clicks?  
> > > 
> > > Only short taps.
> > >  
> > AFAIK, libinput disables taps by default. Try to add following
> > snippet to your xorg.conf:  
> 
> I do not have (and never had on this laptop) any xorg.conf file. I
> added the options to an existing file:
> 
> # diff /usr/local/share/X11/xorg.conf.d/40-libinput.conf*
> 
> 37,39d36
> <         Option "Tapping" "on"
> <         Option "NaturalScrolling" "on"
> <         Option "ClickMethod" "clickfinger"
> >   

Hi Matthias,

Instead of modifying the X config file that came from the package or
adding your own custom xorg config files, you can use `xinput` to
modify these properties while X is running and, once you're happy,
automate that for startup in your ~/.xinitrc (I do this with all my
customizations, so that all configuration stays in my home directory).

You can list available devices using xinput, example:

$ xinput
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ System mouse                              id=6    [slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad                id=9    [slave  pointer  (2)]
⎜   ↳ TPPS/2 IBM TrackPoint                     id=10   [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ System keyboard multiplexer               id=7    [slave  keyboard (3)]
    ↳ AT keyboard                               id=8    [slave  keyboard (3)]

In my case, the device is"SynPS/2 Synaptics TouchPad".

Using this, I can the drill into available properties:

$ xinput list-props "SynPS/2 Synaptics TouchPad"
Device 'SynPS/2 Synaptics TouchPad':
        Device Enabled (138):   1
        Coordinate Transformation Matrix (139): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
        libinput Tapping Enabled (293): 0
        libinput Tapping Enabled Default (294): 0
        libinput Tapping Drag Enabled (295):    1
        libinput Tapping Drag Enabled Default (296):    1
        libinput Tapping Drag Lock Enabled (297):       0
        libinput Tapping Drag Lock Enabled Default (298):       0
        libinput Tapping Button Mapping Enabled (299):  1, 0
        libinput Tapping Button Mapping Default (300):  1, 0
        libinput Natural Scrolling Enabled (261):       0
        libinput Natural Scrolling Enabled Default (262):       0
        libinput Disable While Typing Enabled (301):    0
        libinput Disable While Typing Enabled Default (302):    1
        libinput Scroll Methods Available (263):        1, 1, 0
        libinput Scroll Method Enabled (264):   1, 0, 0
        libinput Scroll Method Enabled Default (265):   1, 0, 0
        libinput Click Methods Available (303): 1, 1
        libinput Click Method Enabled (304):    1, 0
        libinput Click Method Enabled Default (305):    1, 0
        libinput Middle Emulation Enabled (268):        1
        libinput Middle Emulation Enabled Default (269):        0
        libinput Accel Speed (270):     0.000000
        libinput Accel Speed Default (271):     0.000000
        libinput Left Handed Enabled (275):     0
        libinput Left Handed Enabled Default (276):     0
        libinput Send Events Modes Available (277):     1, 1
        libinput Send Events Mode Enabled (278):        0, 0
        libinput Send Events Mode Enabled Default (279):        0, 0
        Device Node (280):      "/dev/input/event3"
        Device Product ID (281):        2, 7
        libinput Drag Lock Buttons (282):       <no items>
        libinput Horizontal Scroll Enabled (283):       1

On my touchpad, using the command

$ xinput set-prop "SynPS/2 Synaptics TouchPad" "libinput Tapping Enabled" 1

enables tapping on my touchpad.

To make this change permanent, I then add the following lines to
my ~/.xinitrc file (obviously before starting the window manager,
probably nearby potentially existing calls to configure keymap with
setxkbmap):

  device="SynPS/2 Synaptics TouchPad"
  xinput set-prop "$device" "libinput Tapping Enabled" 1
  # for those who like "natural" scrolling:
  xinput set-prop "$device" "libinput Natural Scrolling Enabled" 1
  # etc.

You'll need to replace "SynPS/2 Synaptics TouchPad" with the
correct device name you determined using xinput above ("Cyapa
something").

Cheers,
Michael

-- 
Michael Gmelin