DPI Change Verification Test
Did changing your mouse DPI actually change your pointing behavior? Swipe 20 cm before and after toggling your DPI to observe true hardware scaling.
Why test your mouse before and after changing DPI?
Many users change their DPI in companion software (e.g. from 800 to 1600) but fail to notice when onboard memory profiles or Windows pointer modifiers fail to apply. A before-and-after physical swipe confirms whether observed coordinate counts scale with mathematical proportionality.
Step 1: Click & Swipe 20 cm (Current DPI)
Glide your mouse horizontally against your desk ruler.
What to Expect When Changing DPI
If you change your DPI setting from 800 to 1600, observed coordinate counts over the exact same 20 cm physical travel should increase by approximately 2.00× (within a normal ±5% variance).
If the observed ratio is 1.00×, your companion software failed to apply the profile to mouse hardware onboard memory. If the ratio is irregular (e.g. 1.35×), check for Windows pointer speed scaling or dynamic acceleration curves.
- Before-and-after physical verification proves whether hardware profile changes actually modified pointer output.
- Doubling DPI should produce double the count displacement over identical physical desk distance.
- Perform swipes at steady velocities to eliminate human acceleration error.