I have stripped my full desktop debian 7 x64 to the bare, leaving just xorg and lightdm for a kiosk application.

I have changed the lighdm configuration to auto-login a user. When I boot, this works fine, xorg starts up and without prompt the user is logged in.

However upon login an xterm window starts in the upper left-hand corner of the screen. I have tried in vain to figure out which instance actually started that xterm!

I would of course want to replace it with my kiosk binary wrapped in a watchdog script.

  • Have you looked in /etc/X11? – goldilocks Jun 4 '14 at 11:46
  • Boy have I looked there... I even did a grep -iR xterm / at one point without getting any wiser. – Lennart Rolland Jun 4 '14 at 11:47
  • 1
    try pstree.... – Braiam Jun 4 '14 at 11:53
  • good idea! I allready did ps auxf and it is clear that xterm is started by lightdm, however I am more interrested in knowing which configuration option in which configuration file is responsible. I guess that must be the lightdm.conf file, however it is not at all clear to my how it selected to start xterm – Lennart Rolland Jun 4 '14 at 12:30
  • I made a discovery! lightdm uses /etc/X11/Xsession which on debian is a huge mess of scripts calling eachoter. This in turn is responsible for calling ~/.xsession The reason why xterm was started is because I did not have ~/.xsession. And this is the fun part: the ~/.xinitrc file is no longer used for never versions of xorg, so even if you have it, it will still revert to the xterm – Lennart Rolland Jun 4 '14 at 13:05

In Debian xterm is automatically started if no window manager is selected.

Even if you have no slightest idea about who started xterm easiest way to find this out: as root rename /usr/bin/xterm to /usr/bin/xterm_. Create /usr/bin/xterm script:

( echo $$; ps -f --forest ) >/tmp/xterm.txt

Than take a look into output.

  • That's not just a Debian thing. It's what startx or xinit traditionally does if you have not ~/.xinitrc. – Gilles Jun 4 '14 at 22:26
  • Actually there is no .xinitrc anymore. It's called .xsession now for some reason. – Lennart Rolland Jun 5 '14 at 0:38

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.