how to run root cmds when starting xorg?

Tore Lund toreld at
Mon Feb 26 00:04:09 UTC 2007

"deeptech71 at wrote:
> Norberto Meijome wrote:
>> On Sun, 25 Feb 2007 00:24:49 +0100
>> deeptech71 at wrote:
>>> From: deeptech71 at
>>> To: freebsd-questions at
>>> Subject: how to run root cmds when starting xorg?
>>> Date: Sun, 25 Feb 2007 00:24:49 +0100
>>> Sender: owner-freebsd-questions at
>>> User-Agent: Thunderbird (Windows/20061207)
>>> how do i exec a kldload script when starting ttyv8 kdm (or xorg) ?
>> modify the xorg or kdm  startup script? 
> Xorg's xinitrc is a user script. Or does one of the X server or client thing 
> start as root? If so, which script runs? xinitrc didnt work..
> "...../kdm -nodaemon": exactly which one (if any) executed as root?

The startup script is /usr/X11R6/lib/X11/xdm/Xsetup_0.  You may also
want to have a look at /usr/X11R6/lib/X11/xdm/Xsession.  This latter
file will call up ~/.xsession, which is where we normally put commands
at the beginning of an X session called up through xdm.  What I do in
that file is to call nvidia-settings and display a background image.  I
guess ~/.xsession is the right place to put a kldload - this file may be
simply a symlink to .xinitrc (if the setup you want is in this file).

>> why do you need such thing?
> I want to load sound support only when in a desktop environment, and 
> auto-disable it when moving back to a console. That is, I need a script that 
> loads sound when starting, and unloads when exiting kdm.

Okay, when you revert to the console, /usr/X11R6/lib/X11/xdm/Xreset may
be the right place to put a kldunload.  Or maybe you could use
GiveConsole and TakeConsole (in the same directory) to accomplish these
tasks.  I hope more expert users will chime in with more information
about the difference between these various command files.

Have a look at "man xdm" as well as /usr/X11R6/lib/X11/xdm/xdm-config.

For some reason, not many users appear to use xdm.  The majority
apparently prefer kdm or gdm or just .xinitrc.  I find that odd myself.

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