what is required to support a new laptop?

[Erich Dollansky]

Hi,

On Sun, 27 Jan 2013 18:24:36 -0500
Eitan Adler <lists at eitanadler.com> wrote:

> On 27 January 2013 12:59, Kevin Oberman <kob6558 at gmail.com> wrote:
> > On Fri, Jan 25, 2013 at 9:25 PM, Eitan Adler <lists at eitanadler.com>
> > wrote:
> >> On 25 January 2013 14:51, Kevin Oberman <kob6558 at gmail.com> wrote:
> >>> There are several threads in the archives of acpi@ and mobile@
> >>> discussing this. Most things are pretty easy. Use xev to find the
> >>> events generated by the volume buttons.
> >>
> >> I'm handling the volume keys with xbindkeys.
> >>
> >>>  Mute and the ThinkLight (if
> >>> your system has one) should work as is.
> >>
> >> Mute does not function - I am using xbindkeys to handle it.  The
> >> "video" key generates no event.
> >>
> >>> Brightness is a bit bigger issue as Lenovo has completely
> >>> revamped it These buttons don't generate events. :-(
> >>
> >> Where *should* they be handled?   How do they work on windows?
> >>
> >> FWIW they seem to change hw.acpi.video.brightness, but change
> >> nothing visible on the screen.
> >>
> >>> You can install the acpi_call
> >>> port and use it to set the brightness, but it is a pain as it
> >>> does not allow for setting incremental changes, only absolute
> >>> values.(16 of them).
> >>
> >> Any pointers for what to look at? I have no idea what I'm doing
> >> w.r.t. computers ^W ACPI.
> >
> > Install sysutils/acpi_call
> > kldload acpi_call
> > acpi_call -p '\VBRC' -i [0-15]
> >
> > There seem to be some differences on the range, but in my T530 0=off
> > and 15=full.
> >
> > Unfortunately, the brightness functions do not generate X events
> > and I have not seen any posts on how to tie them to anything to
> > adjust brightness.
> 
> 
> [2881 root at gravity ~ ]#acpi_call -p '\VBRC' -i 1
> Unknown object type '0'
> [2882 root at gravity ~ !5!]#acpi_call -p '\VBRC' -i 2
> Unknown object type '0'
> [2883 root at gravity ~ !5!]#acpi_call -p '\VBRC' -i 0
> Unknown object type '0'
> [2884 root at gravity ~ !5!]#acpi_call -p '\VBRC' -i 15
> Unknown object type '0'
> 
> 

I can confirm that this works on an X220:

acpi_call -p '\VBRC' -i $value

It also works lower case for me.

Erich