On Tue, 27 Mar 2001, Hidong Kim wrote:
> Hi,
>
> I'm trying to run printtool on a Red Hat 6.1 machine. I'm logged into
> an X session under my normal user account. I su to root access. When I
> issue 'printtool' as root, I get this error:
>
> Application initialization failed: no display name and no $DISPLAY
> environment variable
> Couldn't load bindings.tcl
> Start from control-panel or set environment variable
> CONTROL_PANEL_LIB_DIR to the control-panel library dir.
> (normally this is /usr/lib/rhs/control-panel)
>
>
> Before I su'ed, I did 'xhost +localhost'. After seeing this error
> message, I set the variable $DISPLAY to :0.0, and $CONTROL_PANEL_LIB_DIR
> to /usr/lib/rhs/control-panel. printtool still gives the same error. I
> really don't want to kill my current X session just to re-login as root
> to run printtool. How can I run printtool without exiting my current
> session? Thanks,
>
>
>
> Hidong
>
>
>
In this case, you want to use "su" and not "su -" to change to root.
That way, you still have a valid DISPLAY variable, as well as the
correct settings to use the display. There are other ways to do it, but
I do not know enough about xauth to walk you through setting that up.
Mikkel
--
Do not meddle in the affairs of dragons,
for you are crunchy and taste good with ketchup.
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