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chjj / compton

A compositor for X11.
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Automatically start compton before display manager possible? #214

Closed cbrnr closed 10 years ago

cbrnr commented 10 years ago

I was wondering if I could somehow start compton before my display manager showing the login screen pops up? I'm using lightdm, and it would be nice if the windows there had shadows.

richardgv commented 10 years ago

Sorry for the very late reply...

Here's how I manage to run compton in lightdm-1.10.1, automatically:

/etc/lightdm/lightdm.conf:

# ...

[SeatDefaults]
# ...
greeter-setup-script=/usr/local/bin/lightdm-onstart.sh
# ...

/usr/local/bin/lightdm-onstart.sh: (This file needs to be executable (+x), just in case)

#!/bin/bash

# You need the "&" unless you want LightDM to be struck here
compton &

LightDM mostly likely won't run as your normal user, so you may wish to use a system-wide configuration file (/etc/xdg/compton.conf) or force compton to load a specific configuration file with --config (note it doesn't necessarily have the permission to read things in your home directory -- it should be able to if it the greeter-setup-script is run as root, as indicated in lightdm.conf, though).

By the way, it might be possible to run compton manually with XAUTHORITY=/var/run/lightdm/root/:0 compton, or something.

cbrnr commented 10 years ago

Cool -- works perfectly! Thanks a lot!

behrangsa commented 5 years ago

Is there a way to make this conditional? For example, to run it before entering an Awesome WM session but not before entering a Gnome session?