hi people
my operation system is red-hat Linux 5.4
when am login as kde session the keyboard has been disable
but when login as gnome session the keyboard has been work
i need to fix this
and know why , because after that the keyboard has been work in kde session i will try replaces the keyboard and restart the system
thanks

How do you deduce that the keyboard doesn't work?
Do kernel shortcuts (eg. ctrl+alt+f2) still work?
Do global shortcuts like for krunner (Alt+F2) work?

I'd ask to check the output of "setxkbmap -print" but that's hardly an option, is it?