Mouse buttons

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About / Prerequisites

This article is for users that have a mouse with more than 7 mouse buttons and want to be able to use all of them. Logitech makes several of these (if you have a Logitech Marble® Mouse you can also look at this page), and Microsoft makes a few as well. If you have one of these mice, read on!

Note: These are helper comments, and can be ignored if you are looking for nothing but raw information. Due to community feedback, I decided to add a bit more commenting that describes what's going on "behind the scenes" with this configuration.

We will be using the Template:Codeline driver for Xorg. EVentDEVice is an advanced driver for USB input devices which offers much greater power over the standard Xorg Template:Codeline driver. It is also more "direct" than the Template:Codeline driver, allowing lower latency and less translation issues.

With the newer Xorg 11R7.0 it seems only the following changes to Template:Filename need to be made with nothing else needing to be done.

Finding the Mouse Name

Note: To get accurate information it is sometimes required to execute this command from a boot where no Xorg or mouse drivers have been loaded.

The first step is to find the name of the mouse. To do this, execute the following command:

$ egrep "Name|Handlers" /proc/bus/input/devices

This should output something like this:

N: Name="Logitech USB Gaming Mouse"
H: Handlers=mouse0 event0 ts0 
N: Name="HID 0566:3002"
H: Handlers=kbd event1 

The mouse is the one that has the Template:Codeline, so the name of the device is Template:Codeline.

Note: My mouse is a Logitech G5; your mouse is probably different, and therefore the Template:Codeline will be different.

Copy the name of the device, and open up Template:Filename.

Configuring Xorg

Now, we need an entry in Template:Filename that tells X how to use this mouse. It should look something like this:

Section "InputDevice"
  Identifier      "Evdev Mouse"
  Driver          "evdev"
  Option          "Name" "Logitech USB Gaming Mouse"
  Option          "evBits"  "+1-2"
  Option          "keyBits" "~272-287"
  Option          "relBits" "~0-2 ~6 ~8"
  Option          "Pass"    "3"
  Option          "CorePointer"

Replace the Template:Codeline option with the name you copied from above. You may also omit the Template:Codeline option if you use multiple mice or experience errors when attempting to load Xorg. The other options are all basic mouse configurations for evdev and should work with most mice.

Next, we need to tell X to use the mouse, so look in Template:Filename for Template:Codeline.

Modify the Template:Codeline section to use "Evdev Mouse" as the device. When you are done, it should look something like this:

Section "ServerLayout"
  Identifier     "Default Layout"
  Screen 0       "Monitor0" 0 0
  InputDevice    "Keyboard0" "CoreKeyboard"
  InputDevice    "Evdev Mouse" "CorePointer"

The only thing you should change in the layout is the Template:Codeline line that refers to your mouse.

That should be all that is required.

  • Edit by: xxsashixx

This is for Logitech G5 Mouse users. I have not tested this for other mice, but if you do not add this, your mouse MAY not work. If you don't need to add this, then don't.


Option "Device" "/dev/input/event[#]"

in the Template:Codeline section or else the mouse will not be picked up.

[#] = The number you got from:

egrep "Name|Handlers" /proc/bus/input/devices
  • Edit by: bapman

With the above method, your mouse might not to work after reboot (event number changes). To fix this, you can use symlinks in Template:Filename. For example:

Option      "Device" "/dev/input/by-id/usb-Logitech_USB_Receiver-event-mouse"

To find the appropriate id, do:

ls /dev/input/by-id/
  • Edit by: Diamir

With a Desktop type keyboard-mouse, this does not work because there is only one USB attachment and Template:Filename contains only the keyboard. In this case, we can create a udev rule to get a consistent link. The following rules create the link Template:Filename which points on the correct event entry:

KERNEL=="event[0-9]*", BUS=="usb", SYSFS{modalias}=="usb:v045Ep008Ad7373dc00dsc00dp00ic03isc00ip00", SYMLINK+="input/usbmouse"

You can call it Template:Filename and put it in Template:Filename

The cryptic value to use for Template:Codeline can be get the following way:

enter the command Template:Codeline

You will find the keyboard and the mouse and see event4 is the mouse in this case:

I: Bus=0003 Vendor=045e Product=008a Version=0111
N: Name="Microsoft Microsoft Wireless Optical Desktop� 1.00"
P: Phys=usb-0000:00:10.0-2/input0
S: Sysfs=/devices/pci0000:00/0000:00:10.0/usb1/1-2/1-2:1.0/input/input3
U: Uniq=
H: Handlers=kbd event0 
B: EV=120013
B: KEY=1000000000007 ff800000000007ff febeffdff3cfffff fffffffffffffffe
B: MSC=10
B: LED=107
I: Bus=0003 Vendor=045e Product=008a Version=0111
N: Name="Microsoft Microsoft Wireless Optical Desktop� 1.00"
P: Phys=usb-0000:00:10.0-2/input1
S: Sysfs=/devices/pci0000:00/0000:00:10.0/usb1/1-2/1-2:1.1/input/input4
U: Uniq=
H: Handlers=kbd mouse0 event1 
B: EV=17
B: KEY=3000000000000 0 1f0000 f8400244000 601878d800d448 1e000000000000 0
B: REL=7c3
B: MSC=10

So I enter the following command (adapt event # to your particular case):

udevinfo -a -p `udevinfo -q path -n /dev/input/event4` | grep modalias

grab the ATTRS which becomes with usb: to complete "SYSFS{modalias}== " entry

And finally, use Template:Codeline as the Device Option in Template:Filename:

Option "Device" "/dev/input/usbmouse"

Post Configuration

Google Chrome

It just works™.

Horizontal scroll works out of the box - push the scroll wheel left or right. Thumb buttons also work as next/previous page.


It just works™.

Note: buttons can be mapped to functions easily in Template:Codeline. For example, to bind button 8 to back:

  1. Navigate to mouse set-up and expand the Application drop-down
  2. In the input column, type: Button 8
  3. In the actions column, type: Back


Horizontal Scroll

By default, left right scroll on a FX/MX mouse translates into back/forward, respectively. If you don't like this, open Template:Codeline and change a few values:

mousewheel.horizscroll.withnokey.action      0
mousewheel.horizscroll.withnokey.numlines   -3

OR (tested on Logitech G5)

mousewheel.horizscroll.withnokey.action      2
mousewheel.horizscroll.withnokey.numlines    2

NOTE: If you use a positive value for numlines, your left/right will switch, ie: pressing left scrolls the window to the right.


OR (tested on Microsoft Wireless Intellimouse explorer 2.0)

mousewheel.horizscroll.withnokey.action         2
mousewheel.horizscroll.withnokey.numlines      -1
mousewheel.horizscroll.withnokey.sysnumlines   false
Note: If you use the true value for numlines, your left/right will be inverted.

Thumb Buttons - Forward and Back
Note: The following maybe redundant depending on whether xev detects all your mouse buttons correctly (functions can be mapped on a per-app basis) or you want to change the default behaviour.

To do this we need to map keystrokes to the desired mouse buttons and install xvkbd and xbindkeys.

# pacman -S xvkbd xbindkeys

In most modern applications which use back/forward features, XF86Back is mapped to back and XF86Forward is mapped to forward by default. On most MX mice the thumb buttons resolve to 8 & 9. If your mouse is different, check button numbers using xev and replace the numbers used in the example (b:8 & b:9).

So if you have an MX mouse you would create the file ~/.xbindkeysrc, containing:

# Mouse Buttons
"xvkbd -xsendevent -text "\[XF86Back]""
m:0x0 + b:8 
"xvkbd -xsendevent -text "\[XF86Forward]""
m:0x0 + b:9

Now to test... Run the following command and if it works as expected remember to add xbindkeys to Template:Filename or somewhere where it will be executed each time X starts. Also, this should work with Epiphany and Konqueror without any additional configuration or use of imwheel.


The above info and more help may be found in the MX1000_Buttons wiki.

xmodmap tweaking

Note: None of the below is necessary with evdev, but it's here for non-evdev users. Unless something doesn't work on your mouse, ignore this whole section!

If you use .xinitrc to load X, then add this to Template:Filename (change for the number of buttons you have):

 xmodmap -e "pointer = 1 2 3 6 7 8 9 10 11 12 4 5" &

Note that buttons 4 and 5 must go on the end or else your scroll wheel won't work.

If you use GDM/XDM/KDM instead of .xinitrc, then create the file Template:Filename and add this to it (change for the number of buttons you have):

 pointer = 1 2 3 6 7 8 9 10 11 12 4 5

You may have to play with these numbers a bit to get your desired behavior. Some mice use buttons 6 and 7 for the scroll wheel, in which case those buttons would have to be the last numbers. Keep playing with it until it works!

You can also check to see which buttons are being read with a program called 'xev', which is part of XOrg. When xev is run, it will show a box on your desktop that you can put the cursor into and click buttons to find out what buttons have been mapped.

Alternate Methods

The following methods use standard mouse input driver (xf86-input-mouse) instead of using the evdev driver. It works on mice up to 7 buttons. Edit Template:Filename InputDevice section for your mouse to reflect the changes shown below. Then restart X and you're done.

Method 1 - IMPS/2

This has been tested on an IntelliMouse Explorer 3.0. Your mileage may vary, as this does not seem to work for all said mice.

   Driver      "mouse"
   Option      "Protocol" "IMPS/2"
   Option      "Device" "/dev/input/mice"
   Option      "ZAxisMapping" "4 5 6 7"

Method 2 - ExplorerPS/2

This has been tested on a Logitech MX400 and MX518 and should work on any mx series mouse with up to 7 buttons.

   Driver         "mouse"
   Option         "Protocol" "ExplorerPS/2"
   Option         "Device" "/dev/input/mice"
   Option         "Buttons" "7"
   Option         "ZAxisMapping" "4 5"
   Option         "ButtonMapping" "1 2 3 6 7"

Settings from above also works for Microsoft InteliMouse Explorer 3.0 that connects through USB.

Method 3 - Auto

This has been tested on a Logitech MX400 and should work on most mice with up to 7 buttons.

   Driver         "mouse"
   Option         "Protocol" "auto"
   Option         "Device" "/dev/input/mice"
   Option         "Buttons" "7"
   Option         "ZAxisMapping" "4 5"
   Option         "ButtonMapping" "1 2 3 6 7"

This has been tested to work with Logitech MX1000.

   Driver         "mouse"
   Option         "Protocol" "auto"
   Option         "Device" "/dev/input/mice"
   Option         "Emulate3Buttons" "no"
   Option         "Buttons" "12"
   Option         "ZAxisMapping" "4 5 7 6 8 9"

Method 4 - btnx (DEPRECATED!!)

btnx: Button Extension – a GNU/GPL mouse tool for GNU/Linux

This allows the use of all buttons on the Logitech MX Revolution and reportedly other multi-button mice as well. Provides greater control & configuration than the evdev driver.

btnx is a daemon, as such it needs to be configured as root, and its actions are available to all users.

Install via AUR: btnx-config then btnx Be sure the xorg.conf "Device" is at the default "/dev/input/mice" rather than "evdev".

Then configure your buttons by running btnx-config as root:


Save your configuration and start btnx daemon (as root):

/etc/rc.d/btnx start

You're likely to want this daemon to be started during boot, so add it to the DAEMONS array of you're /etc/rc.conf

DAEMONS=(.... @btnx ....)

Though very convenient, btnx is no longer available. Its developper states "btnx might not work as intended on some distros anymore". He advises to use easystroke instead.

Method 5 - easystroke

easystroke is a gesture-recognition application for X11

easystroke is a mouse gesture application, but it can be used to manage mouse buttons as well. It's main advantage o-ver btnx is that it's more versatile. On the other hand, it's user-based, so any user has to configure it to reflect his own needs.

In order to set up easystroke to manage your extra mouse buttons, you'll need to do this (example features Back/Forward mouse buttons) : run:

easystroke -g

Go to Preferences tab > Additional buttons > Add, and add any special button.

Go to Action tab > Add action, give the new action a name, as Type choose "Key", as Details set "Alt+Left" for Back button, "Alt+Right" for Forward button, as Stroke click the proper mouse button (confirm if a warning is displayed), and voilà! Your mouse button is configured.

Template:Box Note

Firefox 3 button 6 + 7 correction:

For MX518, try changing the above ButtonMapping Option to:

Option         "ButtonMapping" "1 2 3 8 9" 

And restart X. (Successfully tested on MX518)

Another method:

Leave back/forward mapped to 6+7 in xorg. In Firefox 3 about:config change the following keys:

mousewheel.horizscroll.withnokey.action = 2
mousewheel.horizscroll.withnokey.numlines = -1
mousewheel.horizscroll.withnokey.sysnumlines = false

Binding keyboard to mouse buttons

xvkbd and xbindkeys

Let's say we want to bind some mouse buttons to keyboard ones. The problem we will encounter is that we don't know how to emulate a key press. Here comes in handy xvkbd. We can use it along with xbindkeys.

pacman -S xbindkeys xvkbd
xbindkeys --defaults >> ~/.xbindkeysrc

to restart xbindkeys type:

pkill -f xbindkeys

Here's example ~/.xbindkeysrc config:

"xvkbd  -text "\[F8]""
       m:0x0 + b:8
"xvkbd  -text "\[Shift]\[Left]""
       m:0x0 + b:9
"xvkbd  -text "\[Shift]\[Right]""
       m:0x0 + b:10
"xvkbd  -text 2"
       m:0x0 + b:11
"xvkbd  -text 3"
       m:0x0 + b:12

if you want to check your mouse buttons number use xev. Don't forget to type capital letters in xvkbd -text usage and to escape opening bracket with \, or you get simply [Shift] written.

Why standard methods are not enough?

This will work great for X servers, but it seems not to work in some specific situations, like in Enemy Territory game. So I will describe a bit more advanced configuration, which work with my logitech G5 buttons - I can use all my 5 additional buttons along with 3 standard and a scroll, which gives overall 10 events to use in Enemy Territory. So here we go:

Note: Update: evrouter can now simulate X11 key events so it is now possible to skip kbde and only use evrouter to bind keyboard buttons to your mouse.


To emulate keystroke which will be later detected in Enemy Territory we need something more advanced than xvkbd. Here comes in handy kbde, but it doesn't exist in AUR yet – we've got to compile it by ourselves. We need two programs: kbde and kbde-driver. Kbde website is located on sourceforge [1], check it for download, you need only kbde-driver. Apparently, it doesn't work for me without some hacking. Use your editor and add

#include <linux/version.h>

somewhere near other includes in the driver/kbde.c file. (OK, I'm not sure whether it is a proper way to compile it, but it works). Assuming that you've already done that try:

tar -zxvf kbde-driver-1*
cd kbde-driver-1*
# if you don't have sudo just use su and type this as root
sudo make install mknod
modprobe kbde

and now you should have kbde working. If you want to use it as a non-root (yes, you want) change permissions, the quickest and dirtiest way is (note that I added my startup scripts at the end of this text):

chgrp users /dev/kbde
chmod 220 /dev/kbde

If not try reading installation instructions on the site. Now we can use it to emulate keystrokes visible even in login shells:

kbde --press 5 --release 5 -b

this will press 5 for about three times. If you want to type a string using this, rather than this use --asci=STRING, as press sometimes generates 3 strokes before it is released.


Now we need something which will work when Enemy Territory is loaded. Apparently, xbindkeys does not work here, so we need another program: evrouter [2], which can be found in the AUR: [3]

OK, so now we must have evdev and we can NOT use it in X, so here is how my example Template:Filename mouse section looks like:

 Section "InputDevice"
   Identifier  "Logitech G5"
   Driver      "mouse"
   Option      "Protocol" "Auto"
   Option      "Device" "/dev/input/mouse1" # probably you'll need here mouse0
   Option      "Name"   "Logitech USB Gaming Mouse"
   Option      "Buttons" "8" # set this to your number of buttons
   Option      "ZAxisMapping" "4 5"


and now we have to restart the X server. You will run this as user, and event devices are owned by root, so you got to change the permissions at this point. Let us say we do it just like that, but I advise you to do this more carefully (note that I added my start-up scripts at the end of this text):

chgrp users /dev/input/event*
chmod 660 /dev/input/event*

Now we can use the Template:Codeline option to check what we will have to bind and to which device:

evrouter --dump /dev/input/event*
# here click buttons you would like to bind

It will give you output similar to config. Here is my example config Template:Filename with kbde usage:

"Logitech USB Gaming Mouse" "/dev/input/event.*" any key/278 "SHELL/kbde --press 2 --release 2 -b"
"Logitech USB Gaming Mouse" "/dev/input/event.*" any key/279 "SHELL/kbde --press 3 --release 3 -b"
"Logitech USB Gaming Mouse" "/dev/input/event.*" any key/274 "SHELL/kbde --press 4 --release 4 -b"
"Logitech USB Gaming Mouse" "/dev/input/event.*" any key/277 "SHELL/kbde --press 5 --release 5 -b"
"Logitech USB Gaming Mouse" "/dev/input/event.*" any key/276 "SHELL/kbde --press 6 --release 6 -b"

Same config using evrouters built in X11 key event emulator instead of kbde:

  "Logitech USB Gaming Mouse" "/dev/input/event.*" any key/278 "XKey/2"
  "Logitech USB Gaming Mouse" "/dev/input/event.*" any key/278 "XKey/3"
  "Logitech USB Gaming Mouse" "/dev/input/event.*" any key/278 "XKey/4"
  "Logitech USB Gaming Mouse" "/dev/input/event.*" any key/278 "XKey/5"
  "Logitech USB Gaming Mouse" "/dev/input/event.*" any key/278 "XKey/6"

This works great, even in Enemy Territory. The "none" modifier means that I have to only press the button, other options are Template:Keypress + Template:Keypress and so on. Here I use "any" because "none" means that after pressing Template:Keypress, Template:Keypress, or Template:Keypress, our buttons would not work. Also note that it accepts regular expressions for mouse name and event path. Then, after setting up a config, run service with:

evrouter /dev/input/event* >> /dev/null

or change the Template:Codeline to a device corresponding to your mouse -- but be aware that the numbers are changing sometimes. It will work in background, while outputting some annoying messages, so we stream it to Template:Filename. If something went wrong, run it without streaming and check what it outputs. If you want to end it, you have to delete Template:Filename manually. Here is a script to kill evrouter:

evrouter -q
rm -f /tmp/.evrouter*

and here is one to start it:

mydevicename="Logitech USB Gaming Mouse"

device=`evrouter -D /dev/input/event* | grep "$mydevicename"` | cut -d ":" -f 2
evrouter $device > /dev/null

You have to edit the Template:Codeline variable to its proper value (the one which is shown by Template:Codeline), or just change it to listen on all events by changing device var to Template:Codeline. OK, I have saved them in Template:Filename. Now, everything should be ready for use!

binding + and - in logitech G5 mouse

If you want to bind buttons + and - in G5/7 mouse, which normally changes dpi, you have to use g5hack [4] released by a lomoco author.

gcc -o g5hack g5_hiddev.c
./g5hack /dev/usb/hiddev0 3

This will change your dpi to 2000, light the 1st led and disables dpi on-the-fly changing, so you can use it with evrouter. If you would use it frequently I suggest you to copy it to the /usr/bin dir:

$ sudo cp g5hack /usr/bin/

If you want to bind your + and - buttons you must copy the line at the bottom (one with the comment '"-" button does not function anymore' above) to the mode you'll be using, like, for example, under the "case 3:" you can put it on the line with the comment 'turn on third led' above (deleting the old one before of course).

For the newest G5 mouse which is reported as "product 0xc049" original hack don't work. You have to simply change the #define MOUSE_G5 0xc041 to #define MOUSE_G5 0xc049 and recompile.

startup scripts

Currently, I am using a startup script with a few dirty methods, so if somebody can propose better, please edit. I have created an input group and made my user a member of it.


# creating /dev/kbde nod and changing permissions
# also don't forget to add kbde in modules line in /etc/rc.conf
# to be honest, I'm not sure why we have to create /dev/kbde after each startup, but it seems that only this way it works
# maybe first check if it's needed for you, too
mknod --mode=220 /dev/kbde c 11 0 
chgrp input /dev/kbde
# changing permissions for event* -- evrouter needs that
chmod 660 /dev/input/event*
chgrp input /dev/input/event*
# g5hack ran for a few times to make sure that it'll work...
# note that I've add it to /usr/bin, you should probably put your full path here
# you probably should skip this lines, especially if you don't have a Logitech g5/g3/g7
g5hack /dev/usb/hiddev0 3
g5hack /dev/usb/hiddev0 3
g5hack /dev/usb/hiddev0 3


# there I use my script to start evrouter, which I have presented above
# here I map my buttons so I can use G5 thumb button as push to talk in TS
# note that I have to use it as middle button also on KDE
# you probably don't need it
xmodmap -e "pointer = 1 9 3 4 5 6 7 2 8 10 11 12"

And voila, we've got it working immediately after KDE login.

User Tools

IMWheel provides configurable mouse wheel and button mapping. It can be configured globally or for individual processes.

# pacman -S imwheel

Sample Template:Filename to enable back/forward thumb buttons for all applications, and increased scroll speed in Chromium

None, Thumb1, Alt_L|Left
None, Thumb2, Alt_L|Right

None, Up, Button4, 3
None, Down, Button5, 3

lomoco for Logitech MX mice will help you set the proper resolution, enable or disable smart scroll (with boot time support too!), etc. lomoco is available from the Community repository and can be installed with the following command:

# pacman -S lomoco

Be sure to look at Template:Filename and set up the the options you want to be automatically applied when the mouse gets loaded by udev.

Note: The lomoco package may be out of date. There is a hack for newer Logitech mice: [5]