On Fri, 6 May 2022 at 04:24, Greg Wooledge <g...@wooledge.org> wrote:
> On Thu, May 05, 2022 at 06:48:49PM +0200, Giovanni Biscuolo wrote:
> > I'm trying to customize my user environment when using the lightdm
> > display manager (then the LXDE desktop environment)
Hello
TLDR: try defining the variables you need in ~/.xsessionrc
I don't have time to read the detail of the OP message, but
I use LXDE on Debian 11, so I can offer some information
that might be useful to others in the thread.
I configured all this years ago and it has been working ever since,
so I have forgotten all the details.
To achieve the same LXDE login configuration and environment
as a console login, I have these two lines in $HOME/.xsessionrc:
. "/etc/profile"
. "${HOME}/.profile"
(the double quotes just highlight strings in my editor)
The file $HOME/.xsessionrc is sourced by
/etc/X11/Xsession
via
/etc/X11/Xsession.d/40x11-common_xsessionrc
which contains this self-documentation:
# This file is sourced by Xsession(5), not executed.
# Source user defined xsessionrc (locales and other environment variables)
Some do-it-yourself tracing that I have placed into my scripts
when I was trying to figure out how to get this working informs me that
this is the sequence of events:
lightdm(1310) > lightdm(1393) > Xsession(1414) . ~/.xsessionrc
lightdm(1310) > lightdm(1393) > Xsession(1414) . ~/.profile
lightdm(1310) > lightdm(1393) > Xsession(1414) . ~/bin/_my_export
lightdm(1310) > lightdm(1393) > lxsession(1414) > lxpanel(1503) >
x-terminal-emul(2403) > bash(2433) . ~/.bashrc
The format of this data is:
"parent(PID) > subparent(PID) > process(PID)
some_statement_invoked_in_a_sourced_script_indented_if_child_of_above_script"
The indented statements at the far right show the statements being
executed in my instrumented scripts.
So it appears that . ~/.profile runs when Xsession starts,
but ~/.bashrc is not run until I manually open a terminal
in LXDE, which appears in the above as x-terminal-emul.
I assume that Xsession and lxsession are the same process
because they have the same PID.
I have chosen to use lxterminal to provide x-terminal-emul.
One quirk of lxterminal is that there is only one process
which handles all open terminal windows.
~/bin/_my_export file is where I set and export environment variables
so that this file can be sourced by either ~/.profile or ~/.bashrc
as needed.
