How can I get a command to run before login (ie while booting or just after)?

Question

I have an encrypted home folder, so I can't log in automatically (and I wouldn't want to) but also my display defaults to the minimum brightness at each boot. To fix this I run the command

`xbacklight =100`

as a startup application, but this only runs when I log in and not when a guest logs in or for the login screen which is beautiful, but not seen.

A fix for the whole issue would be preferred, or just a way to run commands during the boot process. Thanks.

score 5 · Accepted Answer · answered Jun 15 '12 at 23:58

5

You can edit /etc/lightdm/lightdm.conf and append the line

display-setup-script=/usr/local/sbin/lightdm-setup.sh

to the [SeatDefaults] section. Then create the file /usr/local/sbin/lightdm-setup.sh with this content:

#! /bin/sh
xbacklight =100

And make the file executable (chmod +x /usr/local/sbin/lightdm-setup.sh). After a reboot or when you restart lightdm (sudo restart lightdm) your script should run.

answered Jun 15 '12 at 23:58

elmicha

9,728

i get low graphics screen when i boot my system after running the said commands on 12.04 32-bit – M. Ahmad Zafar Nov 30 '13 at 09:16
I have no /etc/lightdm/lightdm.conf file. Is there somewhere template for it? – reducing activity Aug 19 '19 at 15:20
Maybe you are using gdm instead of lightdm? Then this answer might help you. – elmicha Aug 26 '19 at 19:38

How can I get a command to run before login (ie while booting or just after)?

1 Answers1

Linked