when xev does not react to the keys, there is one more
possibility to get the codes.
WARNING: this option may or may not work, and will be implemented
in LinEAK in the future (but it is not, at this time)
看看我同步写的另一个稿子
在Suse Linux 10.0上搞定华硕笔记本热键
http://www.linuxfans.org/nuke/modules.php?name=Forums&file=viewtopic&p=4642511#4642511