I can't open gui program in KDE as root

shadkong · 04-20-2005, 01:34 AM

When I use "su" or "su-" to change to root, I can't run GUI program, if I type /opt/kde/bin/kwrite, it shows:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kwrite: /opt/kde/bin/kwrite
root@perfect:/home/shad# /opt/kde/bin/kwrite
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

kwrite: cannot connect to X server :0.0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

How can I run GUI program in KDE as root?

reddazz · 04-20-2005, 01:43 AM

Do the following,

Code:

$xhost +hostname (e.g. localhost)
$su
#kwrite
or just
$su -c "kwrite"

You could also just do

Code:

$kdesu kwrite

shadkong · 04-20-2005, 02:45 AM

Thank you!
What's the meaning of "xhost +hostname"?

reddazz · 04-20-2005, 06:40 AM

The "xhost +hostname" command allows a user who didn't start the X server, to run a gui program in your current X session from the host you specify.

shadkong · 04-20-2005, 08:48 AM

Thank you very much!

masand · 04-20-2005, 12:52 PM

i have used xhost..
but i ahven't used that for a display problem on local machine...
also we could ahve cehcked the environment of DISPLAY

env|grep DISPLAY