On 2017-02-20 10:15:16 -0500, Greg Wooledge wrote: > On Mon, Feb 20, 2017 at 04:02:50PM +0100, Vincent Lefevre wrote: > > More precisely, if I understand correctly, > > > > 1. The DM can request some window manager (for instance, the user has > > the choice between several ones, and he may also choose the default > > session file, or whatever has been used last). If a choice has been > > done, then /etc/X11/Xsession.d/20x11-common_process-args will define > > $STARTUP based on this choice. > > > > 2. If there wasn't a specific request, then when > > /etc/X11/Xsession.d/50x11-common_determine-startup is sourced, > > $STARTUP is still empty. In this case, $STARTUP is defined there > > in the following way. > > > > 2a. If /etc/X11/Xsession.options contains allow-user-xsession (which > > isn't the default, AFAIK),
Actually it is the default (I got confused with something else). > > then $STARTUP is set to the user > > session file, normally "$HOME/.xsession", as /etc/X11/Xsession > > contains: USERXSESSION=$HOME/.xsession > > The window manager should be started from this script. > > > > 2b. Otherwise, the following executables are tried in succession: > > /usr/bin/x-session-manager > > /usr/bin/x-window-manager > > /usr/bin/x-terminal-emulator > > I believe this is what I documented on https://wiki.debian.org/Xsession I hadn't read https://wiki.debian.org/Xsession when I wrote that, but I think that this document is a bit wrong (or incomplete). It says: If a specific session was selected in gdm3, run it. but this doesn't seem to be specific to gdm3 or any other DM. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
