NAME
libinput-debug-events - debug helper for libinput
SYNOPSIS
libinput debug-events [options]
libinput debug-events [options] --udev <seat>
libinput debug-events [options] [--device] /dev/input/event0 [/dev/input/event1...]
DESCRIPTION
The libinput debug-events tool creates a libinput context and prints all events from these devices.
This is a debugging tool only, its output may change at any time. Do not rely on the output.
This tool usually needs to be run as root to have access to the /dev/input/eventX nodes.
OPTIONS
--device /dev/input/event0
Use the given device(s) with the path backend. The --device argument may be omitted.
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--grab |
Exclusively grab all opened devices. This will prevent events from being delivered to the host system. | ||
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--help |
Print help | ||
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--quiet |
Only print libinput messages, don’t print anything from this tool. This is useful in combination with --verbose for internal state debugging. |
--show-keycodes
Key events shown by this tool are partially obfuscated to avoid passwords and other sensitive information showing up in the output. Use the --show-keycodes argument to make all keycodes visible.
--udev <seat>
Use the udev backend to listen for device notifications on the given seat. The default behavior is equivalent to --udev "seat0".
--verbose
Use verbose output
libinput
configuration options
--apply-to="pattern"
Configuration options are only applied where the device name matches the pattern. This pattern has no effect on the --disable-sendevents option.
--disable-sendevents="pattern"
Set the send-events option to disabled for the devices matching patterns. This option is not affected by the --apply-to="pattern" option.
--enable-tap|--disable-tap
Enable or disable tap-to-click
--enable-drag|--disable-drag
Enable or disable tap-and-drag
--enable-drag-lock|--disable-drag-lock
Enable or disable drag-lock
--enable-natural-scrolling|--disable-natural-scrolling
Enable or disable natural scrolling
--enable-left-handed|--disable-left-handed
Enable or disable left handed button configuration
--enable-middlebutton|--disable-middlebutton
Enable or disable middle button emulation
--enable-dwt|--disable-dwt
Enable or disable disable-while-typing
--enable-dwtp|--disable-dwtp
Enable or disable disable-while-trackpointing
--enable-scroll-button-lock|--disable-scroll-button-lock
Enable or disable the scroll button lock
--set-click-method=[none|clickfinger|buttonareas]
Set the desired click method
--set-clickfinger-map=[lrm|lmr]
Set button mapping for clickfinger
--set-scroll-method=[none|twofinger|edge|button]
Set the desired scroll method
--set-scroll-button=BTN_MIDDLE
Set the button to the given button code
--set-profile=[adaptive|flat|custom]
Set pointer acceleration profile
--set-speed=<value>
Set pointer acceleration speed. The allowed range is [-1, 1]. This only applies to the flat or adaptive profile.
--set-custom-points="<value>;...;<value>"
Sets the n points defining a custom acceleration function The points are defined in a semicolon-separated list of floating point non-negative numbers. Defaults to "0.0;1.0". This only applies to the custom profile.
--set-custom-step=<value>
Sets the distance along the x-axis between each point, starting from 0. Defaults to 1.0. This only applies to the custom profile.
--set-custom-type=[fallback|motion|scroll]
Sets the type of the custom acceleration function. Defaults to fallback. This only applies to the custom profile.
--set-tap-map=[lrm|lmr]
Set button mapping for tapping
--set-rotation-angle=<degrees>
Set the rotation angle in degrees (0 to 360).
NOTES
Events shown by this tool may not correspond to the events seen by a different user of libinput. This tool initializes a separate context.
LIBINPUT
Part of the libinput(1) suite