# tail -f /var/log/acpid.events
tail: cannot open '/var/log/acpid.events' for reading: No such file or directory

Hekaton Keires <mailto__hekatonkeires@hotmail.com> wrote in message news:<2kfap6F1lt9sU1@uni-berlin.de>...
>
> preface: i use asus t9400 laptop, so the things are bit different - anyway
> ACPI should manage all these kinda function keys (<Fn>+<F#>) in the same
> manner.
>
> do you actually use ACPI in your kernel? i had some troubles with some
> versions of kernel (2.4.21 and 2.4.22) when i plug in AC adapter once the
> computer has booted up, suddenly the screen becomes dark and it's
> impossible to see anything (it's like the backlight lamp just turns off)...
> anyway with kernel 2.4.25-gentoo-r3 i've found an ACPI asus buttons support
> which can just report to acpid which button has been pressed: you can see
> it with
>
> # tail -f /var/log/acpid.events
>
> once this occurs, normally acpid executes /etc/acpid/default.sh with some
> parameters (type and code of pressed button, counter) and so you can just
> assign it some kinda parameter in order to change brightness of your
> screen.
>
> if you use X/KDE there should be some way to manage
> gamma/contrast/brightness using dcop, even if i'm sure there should be any
> better solution: if you'll find it let me know - when i use older kernels,
> as mentioned above, i still have some problems with brightness