Got little time over the weekend to remember more and look at your responses.
With your trackball events being correctly registered by the OS you have two
options as I see it:
a) reuse different button for middle click
b) emulate middle click (as left+right button press)
a) pick alternative button for the middle button function on your device.
find out what is the button number by: xev | grep button
- example: You chose button 8
find out your device ID by: xinput list
- in your case it is: 8
get your existing button mapping: xinput get-button-map 8
- I get: 1 2 3 4 5 6 7 8 9
- button map - maps device button numbers to xinput buttons/events by order
in my example device button 1 maps to ximput button 1 ...
- xinput button order is:
1 = left button
2 = middle button (pressing the scroll wheel)
3 = right button
4 = turn scroll wheel up
5 = turn scroll wheel down
6 = push scroll wheel left
7 = push scroll wheel right
8 = 4th button (aka browser backward button)
9 = 5th button (aka browser forward button)
assign your device button (8) to xinput middle button (2)
- this is done by putting dev button (8) to the 2nd place in the list
you got from: xinput get-button-map 8
sudo xinput set-button-map 1 8 3 4 5 6 7 8 9
now your button 8 should act as middle button
Note 1: If you get error: No protocol specified - run: xhost +
before executing the command
Note 2: If you want to make this permanent add the xinput set....
to ~/.xstartup or figure out the relevant X11 config file/line
b) Emulating middle button as left+right button press
find out your device ID by: xinput list
- in your case it is: 8
check xinput property settings for your device 8 by:
xinput list-props 8
- you will most likely see line like:
libinput Middle Emulation Enabled (284): 0
enable middle button emulation by:
sudo xinput set-prop 8 "libinput Middle Emulation Enabled" 1
- if you get protocol error - see Note 1 above
to make it permanent - see Note 2 above or:
/etc/X11/xorg.conf:
Section "InputClass"
Identifier "middle button emulation class"
MatchIsPointer "on"
Option "Emulate3Buttons" "on"
EndSection
I hope this will work for you - It comes from my old notes
If someone finds this and uses Wayland instead of X11 - this will most likely
not work for them.
Best luck,
Tomas
On Sat, 2019-07-06 at 11:32 -0700, Rich Shepard wrote:
> On Fri, 5 Jul 2019, Rich Shepard wrote:
>
> > Help appreciated,
>
> I've taken this thread to the linuxquestions.org hardware forum. Thanks,
> Tomas, for your responses.
>
> Rich
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