Arch Linux

Description:
Some keys, when pressed, triggers strage events. So far identified:
- Delete - triggers both Delete and PrintScreen consecutively
- DownArrow - triggers both DownArrow and Enter consecutively

Additional info:
* this behavior is found only in X (either Gnome+GDM, or KDE+KDM), and not in plain console.
* it appeared after an update of multiple packages, including xorg and kernel related.
* the bug is only reproducible on my laptop, but not on my desktop machine (both with x86_64 architecture); hardware configuration (where the bug occurs):
- Dell XPS M1530
- CPU: Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz
- RAM: 4GB
- other hardware details are not relevant
* package version(s) - all last stable updates as of 2010-Feb-23. Some of most related:
- core/kernel26 2.6.32.8-1
- extra/xorg-server 1.7.5-1
- extra/xf86-input-keyboard 1.4.0-1
- extra/xf86-input-evdev 2.3.2-1
- extra/xorg-xkb-utils 7.5-2
* config and/or log files - attached is xorg.conf (useless, but anyway)


Steps to reproduce:
- while in X session, in any editor (nano, gedit, kate, vi (insert mode)), or in terminal (konsole, gnome terminal), any application that interprets "DownArrow" key, press it (meaning the "DownArrow" key); results - unexpected "Enter" is also triggered;
or
- while in X session, press "Delete"; results - unexpected "PrintScreen" key event is also triggered