Mouse acceleration is a feature that changes the relationship between physical mouse movement and cursor movement on screen. When enabled, moving your mouse quickly will make the cursor travel further than moving it slowly over the same physical distance.
While some users prefer acceleration for general computing tasks, it can be problematic for gaming and precision work because:
This tool helps you detect if mouse acceleration is enabled on your system and measure its impact on your cursor movement.
Follow the steps below to check if your mouse has acceleration enabled.
Move your mouse between the two points at different speeds. If the cursor travels different distances depending on how fast you move, acceleration is enabled.
This test measures the actual distance your cursor travels at different speeds to quantify acceleration.
This test plots your mouse's acceleration curve by measuring cursor movement at various speeds.
Click "Start Curve Test" and move your mouse in a horizontal line at varying speeds when prompted. The test will collect data points to generate your acceleration curve.
Review common system settings where mouse acceleration might be enabled and learn how to disable it.
Many gaming mice come with their own software that may have acceleration settings:
Look for settings labeled "acceleration", "pointer precision", or "speed shift" and disable them.
For stubborn acceleration issues, you can modify the Windows registry:
Warning: Editing the registry can be risky. Create a backup before making changes.
defaults write .GlobalPreferences com.apple.mouse.scaling -1
To restore default settings: defaults delete .GlobalPreferences com.apple.mouse.scaling
/etc/X11/xorg.conf.d/50-mouse-acceleration.conf
Section "InputClass"
Identifier "My Mouse"
MatchIsPointer "yes"
Option "AccelerationProfile" "-1"
Option "AccelerationScheme" "none"
Option "AccelSpeed" "-1"
EndSection
Many desktop environments have mouse settings in their control panels:
If your cursor travels the same distance regardless of movement speed, acceleration is disabled. This is ideal for consistent gaming performance.
If faster movements result in slightly longer cursor travel distances (ratio 1.1-1.3), you have mild acceleration. This may be acceptable for casual gaming but could affect precision.
If faster movements result in much longer cursor travel distances (ratio >1.3), you have significant acceleration. This will likely impact gaming performance and should be disabled.
If faster movements result in shorter cursor travel distances, you have negative acceleration. This is rare but can occur with certain drivers or settings.
If you've tried the standard methods but still notice acceleration:
Many games have their own mouse settings that can cause acceleration:
m_mousespeed 0
and m_customaccel 0
in consoleIf your mouse feels too slow or fast after disabling acceleration: