Re: after 'su -', 'Can't open display'

[Ron Peterson <ron.peterson@yellowbank.com>]

> When I start X Windows, using the KDE window manager, I change to root
> (with su - )
> for administrative tasks.  However I seem unable to run X window
> applications.
> 
> Whatever X application  I try to run, I inevitably get a message similar
> to "... unable to open display".

Try this.  While logged in as yourself, type 'xauth nexport - $DISPLAY >
myxauth' (sans quotes, of course).  Then become root, and type 'xauth
nmerge myxauth'.  Then delete myxauth.

-Ron-
GPG and other info at: http://www.yellowbank.com/