I have been trying to get my laptop's screen brightness to default to a low setting, and for my keyboard light to be off when I start my computer.
I have these two commands that work when I execute them at the command line:
xbacklight -set 7
echo 0 | sudo tee /sys/class/leds/asus::kbd_backlight/brightness
I put them in my /etc/rc.local
file, like so:
#!/bin/sh -e
# ...
# By default this script does nothing.
echo 0 | tee /sys/class/leds/asus::kbd_backlight/brightness
xbacklight -set 7
exit 0
However, neither command executes. (I was told that the sudo
was not needed in the second command when placed in /etc/rc.local
)
There was another question asking the same thing about rc.local
, but I tried to also include my commands using the Startup Applications GUI interface. That also did not work, so I think the problem might go beyond just the rc.local
file. Other default startup commands in the list seem to start, so far as I can tell.
Why am I unable to get any custom command line to execute when I startup?
New: After some experimentation, it seems like the commands I put in /etc/rc.local
might be getting executed before the login screen. So, my login screen has the screen appropriately dimmed. However, then when I login, my screen goes to maximum brightness. So it seems like perhaps there is some other setting that is being applied when I log in, or that /etc/rc.local
only applies for the login screen itself and has no bearing on what happens to a user when logged in.
So, how do I resolve this so that the brightness and keyboard light settings I want apply to the user login session, not just to the login screen?
ls /sys/class/backlight/
xbacklight
is not working when put in/etc/rc.local
seems easy to explain... The X server has not started yet when the system executes this file. On the other hand, it is really strange that it is not working in your startup session option....bashrc
file in your home directory?