Laptop lid switch and ACPI

frzburn frzburn at
Tue Mar 6 22:57:33 UTC 2007

Well, I thought about it, and you're right... What I really need is to be
able to do something upon an acpi event, like running a script when I close
my lid...

But I didn't find these info anywhere =(
Please help me! =)

acpi is working, it has control on my fan and monitors my CPU temperature.
I tried devd -dD, and it reacts when I close my lid, but I don't know how to
use this output...



On 3/6/07, Norberto Meijome <freebsd at> wrote:
> On Mon, 5 Mar 2007 16:28:06 -0500
> frzburn <frzburn at> wrote:
> > I need a hint on how to get my screen turn off (backlight too) on my
> Dell
> > Laptop.
> > I have an Inspiron 6400 (e1505), and FreeBSD 6 - amd64.
> Hi there,
> I am not sure how to switch off the screen on the dell (independent of
> ACPI)... in all laptops I've seen, it's fully controlled by the hardware
> (bios?).
> Have you got acpi working ?
> If you *do* have ACPI working, and you want to see whether it is firing
> acpi at
> all when you close the lid, you can restart devd in debugging mode:
> /etc/rc.d/devd stop
> devd -dD
> and then try your ACPI events.
> Also, you should be able to tell your ACPI module to let you handle the
> events
> manually. For example, with the acpi_ibm.ko, the knob
> = 1
> tells acpi to pass all acpi messages to devd for handling. Search the logs
> (in
> mobile@ , i believe) - i've posted my config for some sample actions on
> different ACPI events.
> BTW, you may be able to switch off the display using a user mode
> application
> that is related to your video card. For example, if you have a Radeon
> card, the
> radeontool allows you to switch off the panel and external monitor outputs
> (although the ext monitor gets switched on when you switch to X's VT)
> HIH,
> Beto
> _________________________
> {Beto|Norberto|Numard} Meijome
> "Against logic there is no armor like ignorance."
>   Laurence J. Peter
> I speak for myself, not my employer. Contents may be hot. Slippery when
> wet.
> Reading disclaimers makes you go blind. Writing them is worse. You have
> been
> Warned.

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