16

So I tried looking through the various other questions but they mostly focus on disabling the middle mouse paste.

Basically the middle mouse button on my Logitech G500s is broken, and it keeps "clicking" randomly so it's screwing up any chance of doing work.

Is there any way to disable it? Or map it to nothing?

Thanks and sorry if this is a duplicate.

xinput list output:

⎡ Virtual core pointer id=2 [master pointer (3)]
⎜   ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜   ↳ Turtle Beach Turtle Beach PX3 (XBOX) id=8 [slave pointer (2)]
⎜   ↳ Logitech G500s Laser Gaming Mouse id=9 [slave pointer (2)]
⎜   ↳ Logitech G500s Laser Gaming Mouse id=10 [slave pointer (2)]
⎜   ↳ Razer Razer DeathStalker id=12 [slave pointer (2)]
⎜   ↳ Razer Razer DeathStalker id=13 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
    ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
    ↳ Power Button id=6 [slave keyboard (3)]
    ↳ Power Button id=7 [slave keyboard (3)]
    ↳ Razer Razer DeathStalker id=11 [slave keyboard (3)]
  • Execute this command xinput list | grep 'id=' and post the output. – Helio Mar 15 '15 at 13:36
  • For this mouse, there are two device ID's for this mouse. After running xinput test 9, the id of my mouse middle button is 2 – Tom Hamilton Stubber Mar 15 '15 at 13:42
23

Execute those commands:

xinput set-button-map 9 1 0 3
xinput set-button-map 10 1 0 3

Explaination (kindly donated by @Yehosef):

The first number is the id of the pointer (you'll often only have one, in this case there were two, 9 and 10).

The next numbers are what you do with the first, second, and third (ie, left, middle, right) mouse buttons. The "1 0 3" tells it that the left button should do a left click (action 1), the middle button should do nothing, and the right button should do a right click (action 3). If you want to make the middle button also do a left click you could use "1 1 3". If you wanted to switch the right and left actions you could use "3 0 1". See https://wiki.ubuntu.com/X/Config/Input for more info.

  • Thanks a lot, trying to look this up was getting very frustrating. – Tom Hamilton Stubber Mar 15 '15 at 13:46
  • 1
    Thanks! For those wondering - the 9/10 are the input id of the mouse and the 1 0 3 are the mappings for the first, second, and third mouse buttons. If you wanted all buttons to do the same thing you could use 1 1 1 or if you want to switch the right and left buttons you could use 3 0 1. – Yehosef Jul 26 '16 at 8:03
  • @Yehosef: Thanks! I did not explain what is happening when the OP ran the commands. Please create a new detailed answer, ping me and I'll upvote. This is an interesting explaination. – Helio Jul 26 '16 at 20:13
  • @Helio I don't have a different answer - just more explanation for those interested. Perhaps you want to edit your answer to include this info you can. I was thinking about editing your answer - but I generally don't like it when people add extra details to my answers - so I refrained :) – Yehosef Jul 27 '16 at 11:15
  • 2
    So how do I determine the first number. I run xinput list | grep 'id=' and look for the things that looks most like my mouse/touchpad? Any definitive way of telling whether it is the right one? – Kvothe Jul 24 '18 at 21:15
2

Following instructions are based on info at Ubuntu Wiki (Scroll down to title "Example: Disabling middle-mouse button paste on a scrollwheel mouse").

First, determine id of the pointer by listing input devices:

xinput list | grep 'id='

And look for the line that contains name of your pointer, there also should be id of the device, right after "id=". For example, id of this device is 10:

Lenovo ThinkPad Compact USB Keyboard with TrackPoint    id=10   [slave  pointer  (2)]

Next, get current button map of that device (I'll be using id of my device, which is 10):

xinput get-button-map 10

Output:

1 2 3 4 5 6 7 8 9

This is mapping of pointer buttons to actions, where number represents action code, and position - button.

We're interested in second map - number 2 corresponds to action "Middle Button Click" and the position of it - to actual middle button.

To disable middle button triggering any action, I'd use command xinput set-button-map with id of the device and updated map (new action code is 0 - no action). No need to put whole map - map till interested button suffice (the rest just won't be updated):

 xinput set-button-map 10 1 0

That's it.

  • This worked for my touchpad on a Lenovo Thinkpad T580 with Ubuntu 18.04 – Russell England Apr 24 at 8:34
0

set-button-map disables middle click functionality. To emulate middle-click using left+right click (so you can paste and open-in-tab etc using the mouse) but disable mouse wheel clicks, you can patch libinput:

--- a/src/evdev.c   2019-09-22 17:15:13.498880044 +0300
+++ a/src/evdev.c   2019-09-22 17:15:18.062860221 +0300
@@ -1861,6 +1861,8 @@
    /* Logitech Marble Mouse claims to have a middle button */
    if (device->model_flags & EVDEV_MODEL_LOGITECH_MARBLE_MOUSE)
        libevdev_disable_event_code(device->evdev, EV_KEY, BTN_MIDDLE);
+
+   libevdev_disable_event_code(device->evdev, EV_KEY, BTN_MIDDLE);
 }

 static void
  • mkdir deb; cd deb; apt source libinput; sudo apt build-dep libinput
  • save the above patch as libinput-1.XX.Y/debian/patches/middle.diff
  • add middle.diff to debian/patches/series
  • dpkg-buildpackage -us -uc -b
  • sudo dpkg -i ../libinput10_*.deb
  • restart Xorg or restart the machine

And use xinput list and xinput set-prop 11 "libinput Middle Emulation Enabled" 1 to enable the left+right emulation. 11 is the device number from xinput list and you can add the set-prop command to ~/.xstartup.

Or, to to avoid rebuilding, use a libinput .quirks file (untested):

[My Mouse]
MatchUdevType=mouse
AttrEventCodeDisable=BTN_MIDDLE;

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