[PLUG] Emulating scroll wheel and middle button on Trackman Marble

[Tom]

Unless someone knows better, you need to restart X for these files to
be read. Logout/login is not enough.
Depending on your distro and its age:
stop X: sudo systemctl isolate multi-user.target
start X: sudo systemctl isolate graphical.target
with init V:
stop X: sudo init 4
start X: sudo init 5
- Tomas
On Mon, 2017-05-29 at 11:53 -0700, Rich Shepard wrote:
>    Germane to the replacement for my deceased Logitech trackball that
> had a
> separate scroll wheel and used a press on it to emulate the middle
> mouse
> button.
> 
>    There are very few choices for a trackball with the 'marble' in
> the center
> where it's operated by an index or middle finger and do not have a
> large
> square footprint. The Logitech Trackman Marble and a Kensington
> equivalent
> are reasonably priced versions but both lack a scroll wheel and
> pressing
> both large buttons does nothing rather than emulating a middle-button
> click
> for pasting highlighted text.
> 
>    A web search found a script to enable scrolling and middle
> -clicking. Since
> xorg.conf is deprecated, the script is in /etc/X11/xorg.conf.d/ with
> the
> name 10-evdev.conf:
> 
> Section "InputClass"
> Identifier "Marble Mouse"
> Driver "evdev"
> MatchProduct "Logitech USB Trackball"
> MatchDevicePath "/dev/input/event*"
> MatchIsPointer "yes"
> Option "ButtonMapping" "1 9 3 4 5 6 7 2 8"
> Option "EmulateWheel" "true"
> Option "EmulateWheelButton" "3"
> Option "ZAxisMapping" "4 5"
> Option "XAxisMapping" "6 7"
> Option "Emulate3Buttons" "true"
> EndSection
> 
>    (The author wrote this for the Gnome desktop and set
> Emulate3Buttons to
> false; I changed this to true.)
> 
>    My question is what is required to get the kernel to read this
> file?
> Logging out and back in doesn't do anything. I can't source the file
> because
> there are no executable commands. Is there anything short of a system
> reboot
> that will enable this configuration file?
> 
> Rich
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