Another reason to prefer a real root over sudo

[Mario Vukelic]

On Mon, 2009-02-02 at 16:10 +0100, Pierre Frenkiel wrote:
> 
>    then, X11 doesn't work

Use sux instead of su:

aptitude show sux
[...]
Description: wrapper around su which will transfer your X credentials
 Sux is a wrapper around the standard su command which will transfer
your X credentials to the target user.
Homepage: http://fgouget.free.fr/sux/