How to turn off the backlight?

[Jeremie Le Hen]

Hi,

> I think the problem is that the vga in FreeBSD does not support
> DPMS. This is  problem on a lot of laptops, including my IBM T30.
> 
> jhb posted a patch to acpi_video to support DPMS and started working a
> general vga support, but I don't think he's aver finished it and I am
> still using his patch.
> 
> You can find it in the archives. Look for 'acpi_video_dpms.c'. It's been
> a LONG time, but it still works. I may have made some minor adjustments
> over the months that will be required to make the patch install, but
> it's still working for me with -current.
> 
> If you have too much trouble getting it to apply, I can send you a copy
> of the patch I am currently running.

For the records:
    http://www.freebsd.org/~jhb/patches/acpi_video_dpms.patch

-- 
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >