path: root/doc
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authorPeter Hutterer <>2015-07-07 07:41:03 +1000
committerPeter Hutterer <>2015-07-07 07:41:03 +1000
commit9129a20014f6fa0530059dbaa3e1204b4c142683 (patch)
tree4c54493144d87ca35c819af20285e4e023ed81d3 /doc
parentc19e72f4af2c362dd19dccbdccfb304a5d3e3420 (diff)
doc: add "mouse is too fast" to the FAQ
And reference libevdev's mouse-dpi-tool while we're at it. Signed-off-by: Peter Hutterer <>
Diffstat (limited to 'doc')
2 files changed, 9 insertions, 0 deletions
diff --git a/doc/faqs.dox b/doc/faqs.dox
index 92a42285..9a78dead 100644
--- a/doc/faqs.dox
+++ b/doc/faqs.dox
@@ -3,6 +3,12 @@
Frequently asked questions about libinput.
+@section faq_fast_mouse My mouse moves too fast, even at the slowest setting
+This is a symptom of high-dpi mice (greater than 1000dpi). These devices
+need a udev hwdb entry to normalize their motion. See @ref
+motion_normalization for a detailed explanation.
@section faq_kinetic_scrolling Kinetic scrolling does not work
The X.Org synaptics driver implemented kinetic scrolling in the driver. It
diff --git a/doc/normalization-of-relative-motion.dox b/doc/normalization-of-relative-motion.dox
index dd5d39b3..58ed151b 100644
--- a/doc/normalization-of-relative-motion.dox
+++ b/doc/normalization-of-relative-motion.dox
@@ -44,6 +44,9 @@ Devices usually do not advertise their resolution and libinput relies on
the udev property <b>MOUSE_DPI</b> for this information. This property is usually
set via the <a
href="">udev hwdb</a>.
+The "mouse-dpi-tool" utility provided by <a
+href="">libevdev</a> should be
+used to measure a device's resolution.
The format of the property for single-resolution mice is: