Bug 1035668

Also to add. Might want to follow this Launchpad thread for middle mouse click as it faces the same problem:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1247584

The mouse is actually designed to have the behavior you are seeing. It actually acts as a keyboard and sends keyboard commands. In Windows 8 this makes since. Everywhere else it does not.

To remediate the problem you use udev. I have a fix for Fedora Core 20. The only problem is no way to map a middle mouse click button.

This should not go upstream as there is no way to distinguish the mouse currently. So (I believe) if you have another logitech device, like a keyboard, hooked up to the unified interface it will screw it up.

This is what you do

1) Create Directory /etc/udev/hwdb.d/
   mkdir /etc/udev/hwdb.d/

2) Create file /etc/udev/hwdb.d/90-logitech-m-560.hwdb with content:
# Logitech M-560
keyboard:usb:v046DpC52B*
 KEYBOARD_KEY_90001=middle              # Middle Button map to Middle
 KEYBOARD_KEY_700E2=reserved           # Will Send leftalt when move left with middle button click
 KEYBOARD_KEY_70072=reserved            # Will send f23 when move left with middle button click
 KEYBOARD_KEY_700E3=reserved            # Will Send leftmeta when move right with middle button click. Also is sent when use Back button.
 KEYBOARD_KEY_7002B=reserved            # Will Send tab when move right with middle button click
 KEYBOARD_KEY_90004=left                # Left Scroll Click map to Left
 KEYBOARD_KEY_90005=right               # Right Scroll Click map to Right
 KEYBOARD_KEY_70007=back                # Back button sends second keycode. 700E3 is the first and already mapped.
 KEYBOARD_KEY_700E7=forward             # Forward button map to Forward


3) Update udev hardware database by running command (as root):
      udevadm hwdb --update

4) Reboot

So played around a bit more. It turns out setting the Middle Button to "middle" actually does nothing. But you really want it that way.

The reason is the middle button, when touched and not moved, will send out 0x9001 for it's key code. It's the same key code that the left mouse click sends also. So if you change it, it will break the left mouse click.

The middle button will though work if you move the mouse right or left during actions and map key 0x70072. But this isn't very optimal.

I got middle mouse click working, though you have to be moving the mouse left or right while pressing the middle button. With the help of this link:

http://linuxaleph.blogspot.com/2012/03/mapping-middle-click-to-keyboard-key.html

Here are updated instructions:
1) Create Directory /etc/udev/hwdb.d/
   mkdir /etc/udev/hwdb.d/

2) Create file /etc/udev/hwdb.d/90-logitech-m-560.hwdb with content:
# Logitech M-560
keyboard:usb:v046DpC52B*
 KEYBOARD_KEY_70007=back                # Back button sends second keycode. 700E3 is the first and already mapped.
 KEYBOARD_KEY_700E7=forward             # Forward button map to Forward
 KEYBOARD_KEY_7002B=prog1               # Will Send tab when move right with middle button click
 KEYBOARD_KEY_70072=prog1               # Will send f23 when move left with middle button click
 KEYBOARD_KEY_700E2=reserved            # Will Send leftalt when move left with middle button click
 KEYBOARD_KEY_700E3=reserved            # Will Send leftmeta when move right with middle button click. Also is sent when use Back button.
 KEYBOARD_KEY_90004=left                # Left Scroll Click map to Left
 KEYBOARD_KEY_90005=right               # Right Scroll Click map to Right

3) Update udev hardware database by running command (as root):
      udevadm hwdb --update

4) Reboot

5) Setup middle click with help of these instructions. The click is mapped to "prog1". You will have to be moving the mouse left or right while pressing the middle button.
http://linuxaleph.blogspot.com/2012/03/mapping-middle-click-to-keyboard-key.html
http://linuxaleph.blogspot.com/2008/11/mapping-middle-click-to-keyboard-key.html

I am very grateful for your detailed instructions. I wasn't aware that it was possible to remap keys via hwdb files.

The middle click is a real pain. I set a custom keyboard shortcut so that XF86Launch1 runs "xdotool click 2". It took me a lot of practice to manage moving and clicking and I still can't get it right all the time. Inserting text to a specific point is nearly impossible.

Anyway, I'm glad this mouse is not mine, at least I learned something new. Thank you!

P.S.: Should this be marked as closed?

Yeah best to close it. 

The mouse is designed to act this way. It basically send Windows 8 Hot Key combinations. It really is specifically designed for Windows 8. 

Though now you can make it usable in the traditional way of using a mouse.

Also if you try the mouse out, without the workaround, with UI interfaces GNOME 3 & Cinnammon these interface actually can handle many of the Windows Hot Key combinations and might work great with it as it's meant to be used.

Ok.  Thank you very much for the detailed instructions Jerone.

Hello.

Your solution is not good if there is more than two devices Logitech Unifying.

Exemple :
Keyboard Logitech K270
Mouse Logitech M560

The rules apply to keyboard ans mouse and this is a big problem.

dmesg | grep logitech-dj
   [    3.070809] logitech-djreceiver 0003:046D:C52B.0003: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1a.1-2/input2
    [    3.074236] logitech-djdevice 0003:046D:C52B.0004: input,hidraw1: USB HID v1.11 Keyboard [Logitech Unifying Device. Wireless PID:402d] on usb-0000:00:1a.1-2:1
    [    3.076213] logitech-djdevice 0003:046D:C52B.0005: input,hidraw2: USB HID v1.11 Keyboard [Logitech Unifying Device. Wireless PID:4003] on usb-0000:00:1a.1-2:2

With your solution (90-logitech-m-560.hwdb), some keys do not work on the keyboard (Super+D, D, and more) because it's a same vId and pId.

Where did you get the keyboard key codes you are using?  I'd like to further customize my mouse to my liking.  Thanks.

@malatesta.mike

       Under Fedora Core 20 the tool is called "evtest". See file /lib/udev/hwdb.d/60-keyboard.hwdb for more information and examples.

I used the following information as a work around:

https://help.ubuntu.com/community/MouseCustomizations

This is the .xbindkeys that I've been using:

#side up
"/usr/bin/xte 'keyup Super_R' ; sleep .01; /usr/bin/xte 'key Home' &"
   Super_R

#side down
"/usr/bin/xte 'keyup Super_R' ; sleep .01; /usr/bin/xte 'key End' &"
   Mod4 + d

#middle left
""
   Control + Tab + Super_L

#middle
"/usr/bin/xte 'mouseclick 1'&"
   Super_L + Alt

Also, I used the following command to assign mouse button 2 (middle button) to number 9.

xmodmap -e "pointer = 1 9 3 4 5 6 7 8 2 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24"

I've been unable to do something with the little button behind the mouse's scroll, because of it tow stages. One is Super_L + Alt, and the other is mouse button 1.

The patch from the launchpad bug in comment#2 has gone upstream; so now one can actually use a hwdb rule to make one of the side buttons a middle button. I've filed a bug against systemd asking to include that patch in the Fedora package, bug 1136169.

I have found a work around with this mouse, as I use the middle button often in CAD softwares...

I use the side button to toggle the "Active middle 2", and click again on it to "Remove middle 2 activations"...

So it's pressed, or not. 

here my .xbindkeysrc
#forward
"/usr/bin/lxterminal &"
Mod4 + d

#back
"/usr/local/bin/mouseclick &"
Super_R


And here the script mouseclick to put in the /usr/local/bin/ folder.
It use a file to know if the middle click is on or off. It can be optimised with a global Variable instead of a I/O on the filesystem...

#!/bin/bash
MIDDLE=/tmp/middle
if [ ! -f $MIDDLE ]; 
then 
	touch $MIDDLE && /usr/bin/xte 'mousedown 2'; 
else 
	rm $MIDDLE && /usr/bin/xte 'mouseup 2'; 
fi




Hope that help someone.

With recent versions of systemd (in F21) where the upstream commit I mentioned in c#12, here is a .hwdb file to use the bottom side button as a middle button:
$ cat /etc/udev/hwdb.d/80-logitech-m560.hwdb
keyboard:usb:v046DpC52B*
 KEYBOARD_KEY_70007=274         # side bottom button becomes middle

use that instead of the .hwdb file in c#4, then follow the rest of the instructions Jerone posted to update the hwdb. That button is big enough that using it as a middle click is quite easy IMHO.

FWIW, you don't need to reboot, just unplugging/replugging the usb receiver is enough to trigger the changes.

I'm using still the old init system and not systemd. Do you know how I can also in this case get the side button working as the middle mouse button?

Unfortunately, no I don't :/