Unable to start graphical apps as root in konsole anymore

[Sebastian Vahl]

Hi.

I've seen this for some time now but hadn't had the time to look deeper into 
it: If I become root in konsole via su I'm not able to start graphical apps 
like kwrite or s-c-* anymore. There is no output in .xsession-errors, 
/var/log/messages or /var/log/secure, nor in the terminal itself. Also 
"reboot" or "halt -p" are not working. Simple x-apps like xterm or
xeyes are 
still working fine, though.

I see this on rawhide, F10 and F9, all with KDE 4.2.2. It doesn't matter if I 
use kdm or gdm, my normal user accout or a clean new one, nor a new clean 
installation. 

Is anyone else seeing this?

Sebastian