How to change mouse speed/sensitivity?

First we need to identify the input device ID to change the speed/sensitivity. Open a terminal and run this command:

xinput --list --short

output:

abcd@abcd-abcde:~$ xinput --list --short

Virtual core pointer

↳ SynPS/2 Synaptics TouchPad                id=11   [slave  pointer  (2)]

↳ Logitech USB RECEIVER                     id=12   [slave  pointer  (2)]

My pointing devices are a Logitech USB RECEIVER and a Synaptics TouchPad. To list out device properties:

xinput --list-props "SynPS/2 Synaptics TouchPad"

EDIT:

Another option: xinput --list-props 11 as 11 is the number that is shown above in its parent property (SynPS/2 Synaptic TouchPad).

Now reduce it's property values to suit your need:

Device Accel Constant Deceleration (267):   2.500000

using this command:

xinput --set-prop "SynPS/2 Synaptics TouchPad" "Device Accel Constant Deceleration" 1.5

EDIT:

Another option: xinput --set-prop 11 267 1.5 where 11 is the device, just like from above, 267 is the id of the device property (Device Accel Constant Decleration) as you can see when device 11 is being listed all of properties being attached, and finally 1.5 is your desired speed.

You may have to play around with this number a bit to set it exactly as you need.

If you need to set this value automatically every time Ubuntu starts then:

create a .sh file

#!/bin/sh

xinput --set-prop "SynPS/2 Synaptics TouchPad" "Device Accel Constant Deceleration" 1.5

change the file to executable :

chmod +x

and Put this in the start-up applications list.

Source : Configuring Mouse Speed manually

Ubuntu 12.10 64-bit, Logitech cordless TrackMan

xinput did nothing for me.

xset q

to check settings

xset mouse 3 0

This sets the acceleration to 3 and the threshold to zero. Not great settings but better than before.

If you want to use fractional value, you can enter fraction (i.e. 3/2) instead of floating point number.

The man page says the settings will be lost on logout/reboot.

The above mentioned "Device Accel ..." options do not exist on my machine. Lenovo T440s running Ubuntu 18.04

Instead, I have success using these:

xinput --set-prop "TPPS/2 IBM TrackPoint" "Coordinate Transformation Matrix" 0.5 0 0 0 0.5 0 0 0 1

The original "Coordinate Transformation Matrix was 1 0 0 0 1 0 0 0 1 and I have now half the speed, which is slow enough for me.

With this syntax, we can adjust horizontal and vertical speed separately.

You can use these scripts to set the touchpad and mouse speed each systemstart:

#!/bin/sh
TP=$(xinput --list --short|grep -i touchpad|cut -f 1 | cut -d" " -f 5-|sed 's/\s\+$//g')
xinput --set-prop "$TP" "Device Accel Constant Deceleration" 1.5
xinput --set-prop "$TP" "Device Accel Velocity Scaling" 10

For me, I think 1.5 and 10 are suitable values for the touchpad.

I use a Logitech usb mouse too.
So for a Logitech mouse use this script:

#!/bin/sh
MOUSE=$(xinput --list --short|grep -i Logitech| cut -f 1|cut -d" " -f 5-|sed 's/\s\+$//g')
xinput --set-prop "$MOUSE" "Device Accel Constant Deceleration" 1.2
xinput --set-prop "$MOUSE" "Device Accel Velocity Scaling" 10

For me, I think 1.2 and 10 are suitable values for the mouse.

I created a project on Github: https://github.com/rubo77/mouse-speed

Running sudo xset m 1 1 worked for me. My mouse speed now behaves in a normal behaviour like in Windows platform.

I've fine-tuned deceleration by closing my eyes, before moving pointer to a certain place on the screen. After 5 adjustments, now my mouse moves that much as I'm expecting.

That's the line I'm using right now:

xinput --set-prop "Bluetooth Mouse M557" "Device Accel Constant Deceleration" 2.3

I used the 'simple' profile to increase the mouse resolution without acceleration.

#!/bin/bash

device="Dell Dell USB Optical Mouse"
resolution_percent="241" # Greater than 100, use constant deceleration otherwise with profile -1. 

xinput set-prop "$device" "Device Accel Profile" 4 # Simple profile with threshold 0 allows constant scaling up
xinput set-ptr-feedback "$device" 0 "$resolution_percent" 100 # Set threshold to 0 and acceleration to $resolution_percent/100

You'll have to modify the script by using your particular device name. You can look that up by running xinput without arguments. Also the script has to be run each time the mouse is connected or when you start the system.

Just want to add to the previous answers that it's possible that there won't be "Device Accel Constant Deceleration" property. For example, I don't have it for Logitech G600 in Kubuntu 17.04. But there is "Coordinate Transformation Matrix" which is even more power

As mentioned by others acceleration is not the same as speed. Until recently I used the Coordinate Transformation Matrix setting to scale the mouse velocity and disabled mouse acceleration with xinput. But this comes with its own issues - I had issues in Blender when doing mouse middle button drags to rotate the scene - The cursor was jumping as soon as I released the button. There is an open issue.

But I found a way to directly set the DPI of the mouse. It is possible to create a setting file here:

sudo vim /etc/udev/hwdb.d/50-mouse-dpi.hwdb

With the following content - Replace <name-of-the-device> with the name shown in xinput (e.g. "Logitech G700s Rechargeable Gaming Mouse").

mouse:*:name:<name-of-the-device>:
 MOUSE_DPI=320

To apply the settings execute

sudo systemd-hwdb update && sudo udevadm trigger

Repeat until you find a DPI value which makes you happy.

My Logitech MX518 mouse was too slow on Ubuntu 18.04. I tried to set Accel speed prop to max (1), but it did not speed it enough.

After some more searching, found lomoco (Logitech Mouse Control) and installed it with

sudo apt install lomoco

The man page is here http://manpages.ubuntu.com/manpages/xenial/man1/lomoco.1.html

The manual is good, but for a restless soul, this is what I did:

lomoco --scan

Got this as one of the output lines. c051 is the product ID.

002.004: 046d:c051 MX518 Optical Mouse (M-BS81A) Caps: RES

Then set the sensitivity

sudo lomoco -p c051 --1600

And got a fast mouse.