need help. asus-a6m+brightness control

[Jung-uk Kim]

On Wednesday 10 February 2010 06:20 am, Rui Paulo wrote:
> On 9 Feb 2010, at 21:33, Sergey V. Dyatko wrote:
> > Hi,
> >
> > I have asus-a6m laptop running HEAD.  But unfortunately
> > brightness control not working when I boot with acpi support.
> >
> > I made some changes on acpi_asus.c but it doesn't help -
> > brightness is still not regulated. Good news: the volume keys
> > started working and now I have /dev/led/wled, /dev/led/mled :)
> >
> > result of `acpidump -dt | gzip -c9 >asus_a6m.asl.gz`:
> > http://tiger.ipfw.ru/files/asus_a6m.asl.gz
> >
> > Thanks for any help
> >
> > notebook# svn diff acpi_asus.c
> > Index: acpi_asus.c
> > =================================================================
> >== --- acpi_asus.c (revision 203701)
> > +++ acpi_asus.c (working copy)
> > @@ -357,6 +357,15 @@
> >                .lcd_set        = "\\Q10"
> >        },
> >        {
> > +               .name           = "A6M",
> > +               .wled_set       = "WLED",
> > +               .mled_set       = "MLED",
> > +               .brn_get        = "GPLV",
> > +               .brn_set        = "SPLV",
> > +               .brn_up         = "\\_SB.PCI0.SBRG.EC0._Q0F",
> > +               .brn_dn         = "\\_SB.PCI0.SBRG.EC0._Q0E"
> > +       },
>
> According to your ASL, the methods are
>
> brn_get=\\_SB.PCI0.SBRG.EC0._Q11
> brn_dn=\\_SB.PCI0.SBRG.EC0._Q0E
> brn_up=\\_SB.PCI0.SBRG.EC0._Q0F
>
> So I'm not sure what you have doesn't work...

This DSDT checks _OSI("Windows 2006") aka Windows Vista and uses ACPI 
video extensions instead of ASUS-specific notifications when it 
matches (and we do now).  I just committed generic ACPI backlight 
brightness control for acpi_video(4).  It should work with acpi_video 
now.

Jung-uk Kim