Does anyone here launch xfce4 from .xinitrc, or from console?
xfce4-session clobbers xrandr settings when run from .xinitrc (via
.xinit from Linux console).
When starting from console, I know the monitor layout I want, and
don't like the delay (and blanking between changes) of having to
manually re-run my preferred layout script, so I'd like xfce4 to
respect my "current" monitor layout as set by xrandr just prior to
launching the xfce4 desktop - is this possible?
TIA,
Zenaan
Further details:
After running a few tests, it seems that xfce4 has its own idea of
the "current monitor configuration" and imposes this on each session
start.
This kind of makes sense - normally one wants to begin a new xfce4
login with the same monitor configuration/layout as the previous
login.
Although sometimes that's not possible due to disconnection of
monitors (common case when moving a laptop around, and where only one
of the normal laptop locations has one or more external monitors).
I have scriptified my xrandr settings, so that I can relatively
easily configure keyboard shortcuts to swap between different monitor
configurations/ layouts.
But .xinitrc is my ultimate startup script, not the opaque binary
known as xfce4-xsession - even though I have to run this from
.xinitrc to get my xfce4 desktop.
Good News ----------- xfce4-session respects other ".xinitrc"
environment without clobbering:
- does not clobber .Xresources/xrdb loaded settings
- does not clobber current keyboard repeat rate (actually not
entirely sure, I may not be properly testing this one)
- environment vars ARE passed through (very handy!)
Bad News ---------- xrandr configuration is clobbered.
Potential other preference: respect setting of root window, e.g.
xsetroot -gray -mod 5 5 # not very important
This custom randr script is necessary for me to use - to e.g.
establish some params for potential future xterm launches - another,
dynamic, script, which lays out arbitrary xterms based on "current"
monitor resolutions and of course orientations and offsets. Have not
yet coded a script to dynamically determine number of monitors and
their current rotation and offsets relative to one another, so I have
to decide in advance what I want, and pack various env vars, then run
xrandr, so that later I have the -full- parameters of the current
monitor layout.
Also, scripting randr means I can more easily get precise monitor
offsets (e.g. monitor 1 at y=646), which is useful to cause mouse
movement between monitors to line up properly.
Here's my environment:
- Debian Stretch/9
- Linux 4.9.0-3-amd64
- oldish Core2Duo laptop
- two external monitors, each same size
- one monitor I normally rotate
Steps to reproduce evidencing this limitation:
1) login to Linux console
2) set env vars, init xauth, assemble and launch xinit e.g.:
#!/bin/bash
# "mystartx"
export XDG_... env vars ...
export DESKTOP_SESSION="xfce"
export GLADE_CATALOG_PATH="$GLADE_CATALOG_PATH:"
export GLADE_PIXMAP_PATH="$GLADE_PIXMAP_PATH:"
export GLADE_MODULE_PATH="$GLADE_MODULE_PATH:"
which xdg-user-dirs-update >/dev/null 2>&1 && xdg-user-dirs-update
export XAUTHORITY="$HOME"/.Xauthority
mcookie="$(/usr/bin/mcookie)"
xserverauthfile=`mktemp --tmpdir serverauth.XXXXXXX`
xauth -q -f ...
# This is the important line:
xinit $HOME/.xinitrc -- /usr/bin/X :0 vt1 -keeptty \
-logverbose 5 -auth $xserverauthfile
3) here's ~/.xinitrc :
#!/bin/bash
xrdb -load $HOME/.Xresources # these are not clobbered by xfce
xsetroot -gray -mod 5 5 # this is clobbered
test -z "$DBUS_SESSION_BUS_ADDRESS" && {
eval `dbus-launch --sh-syntax`
dbus-update-activation-environment --systemd DBUS_SESSION_BUS_ADDRESS
}
dbus-update-activation-environment --systemd DISPLAY XAUTHORITY
# disable laptop internal monitor:
xrandr --output LVDS-1 --off
# enable two external monitors:
xrandr --verbose --output DP-1 --pos 0x646 --mode 1920x1200 --rotate \
normal --output DP-2 --pos 1920x0 --mode 1920x1200 --rotate left
#exec xterm -geometry 80x60+0+646 # this alternative runs successfully
# this alternative clobbers xrandr layout, disabling second monitor:
exec ck-launch-session xfce4-session
