Hi,
to solve this, id suggest:
1. have a look what is stated in your xorg.conf file - you should have 
there something like


Section "InputDevice"
     # generated from data in "/etc/sysconfig/keyboard"
     Identifier     "Keyboard0"
     Driver         "keyboard"
     Option         "XkbLayout" "us"
     Option         "XkbModel" "pc105"
EndSection


2. log in as root at runlevel 3 and 'startx'
then switch back to console via ctrl+alt+f1 and have a look at 
/var/log/Xorg.0.log

and look for any error message
switch back to gui via ctrl-alt-f7 to try to type

3. check if you have all X server related packages installed - if you 
run below command you should get those groups installed (except kde if 
you dont use it) ... as a matter of a fact, you can try to install it 
and see if you can run keyboard in kde ... ( to install grp run 'yum 
groupinstall "name of grp"

yum grouplist

Desktop
Desktop Platform
General Purpose Desktop
KDE Desktop
X Window System


cheers,


On 09/16/2014 04:34 PM, MAH Maccallum wrote:
> I recently had a glitch (my own fault) and had to restore/rebuild. I also upgraded from SL 6.1 to 6,5. After several days struggle I can now boot  up
> and login using run level 3 but gnome does not seem to accept any keyboard
> input, either in the password dialog box if I start at run level 5 or in any window or dialog box started after a startx from the run level 3 console.
> I have found reports of similar problems on the web but none of the solutions suggested (or the exact symptoms) seem to match my problem. Our system
> guru is on vacation and I have a deadline to meet so I desperately want help to get my
> GUI back! My best guess is that some file leftover from the old installation is interacting badly with the new: but what? All help gratefully received!
>