gui-apps not opening, when i login as "su -"

9 posts · originally from https://geek.digit.in/community/threads/gui-apps-not-opening-when-i-login-as-su.25129/

Hello All,
I use Debian Sarge .i cant open any gui apps for eg;gedit as "su -"
i tried exporting $DISPLAY value

Code:

prakash@sarge:~$ echo $DISPLAY
:0.0
prakash@sarge:~$ su -
Password:
sarge:~# export DISPLAY=:0.0
sarge:~# gedit
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified


(gedit:9926): Gtk-WARNING **: cannot open display:

Code:

prakash@sarge:~$ xhost +
access control disabled, clients can connect from any host

now if i try opening gedit it will open.so any help..

it is a security feature so that users don't run GUI apps as Root. Anyways, have a look here for a few solutions
*www.mepislovers-wiki.org/index.php?title=XHost_errors_when_trying_to_run_programs_as_root

Nyways i already installed sux,which allows to run gui-apps when login as :

Code:

prakash@sarge:~$ sux -
Password:
sarge:~# gedit

but where do those security things cant we modify for logon..i understand that acl is enabled in default for most distros..but they allow running progs as "su",what is wrong with "su -"..thanks all.

Your X Server is not allowing another user to open Your dosplay.

You need to disable X authentication.

$ xhost +

and then switch users;

Directly giving su retains your original user's environment variables, and su - loads the new user's environment profile. Hence the disparity.

I dont want any compromise in security..so no "xhost +".for now happy with "sux -".i use this command as a shortcut in my gnome taskbar with "run in terminal ticked",so that if i click it show a passwd prompt and directly i can be root.this is for some purposes like

Code:

sarge:~# pon dsl-provider

and many uses.i am accustomed this way.thanks to all.but no real answer came

prakash kerala said:
thanks to all.but no real answer came

What was your problem?

GNUrag said:
What was your problem?

not a problem. a doubt-how can we enable "su -" to open gedit or any such xapps.thats what i am trying from starting of thread

$ gksu gedit
$ gksudo gedit

Use any of the two, ideally put then as command for new launchers.

Does this solve your problem?

nice info!