[SOLVED] How to temporarily disconnect keyboard and mouse under X ?
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Take a look at xscreensaver. Obviously you do not want a screensaver, but what xscreensaver can do is lock your keyboard and require your password to unlock. I. e. either take a look at its source or post on its discussion forum. It should not bee too extremely hard to write a small app based on xscreensaver code that locks X and requires a password before it will "listen" to the keyboard, mouse again, but leave your training script or whatever way you do the teaching running.
For the xscreensaver part, i used this : xscreensaver-command -lock
It works like a charm, except for the login screen, which appears when an input event occurs, but it's np :^).
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