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evtest
Langue: en
Version: 04/22/2010 (fedora - 01/12/10)
Section: 1 (Commandes utilisateur)
NAME
evtest - Input device event monitorSYNOPSIS
evtest "/dev/input/eventX"
DESCRIPTION
evtest displays information on the input device specified on the command line, including all the events supported by the device. It then monitors the device and displays all the events layer events generated.
evtest needs to be able to read from the device; in most cases this means it must be run as root.
evtest is commonly used to debug issues with input devices in X.Org. The output of evtest shows the information presented by the kernel; based on this information it can be determined whether a bug may be a kernel or an X.Org issue.
DIAGNOSTICS
If evtest does not show any events even though the device is being used, the device may be grabbed by a process (EVIOCGRAB). This is usually the case when debugging a synaptics device from within X. VT switching to a TTY or shutting down the X server terminates this grab and synaptics devices can be debugged.
SEE ALSO
inputattach(1)
AUTHOR
evtest was written by Vojtech Pavlik <m[blue]vojtech@suse.czm[][1]>.
This manual page was written by Stephen Kitt <m[blue]steve@sk2.orgm[][2]>, based on that present in the lineakd package, for the Debian GNU/Linux system (but may be used by others).
NOTES
- 1.
- vojtech@suse.cz
- mailto:vojtech@suse.cz
- 2.
- steve@sk2.org
- mailto:steve@sk2.org
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