what is required to support a new laptop?

[Ian Smith]

On Mon, 28 Jan 2013 22:24:29 -0800, Kevin Oberman wrote:
 > On Mon, Jan 28, 2013 at 11:06 AM, Eitan Adler <lists at eitanadler.com> wrote:
 > > On 28 January 2013 06:49, Lars Engels <lars.engels at 0x20.net> wrote:
 > >> On Fri, Jan 25, 2013 at 08:55:40AM -0500, Eitan Adler wrote:
 > >>> Hi all,
 > >>>
 > >>> I recently purchased a Lenovo Y530 and attempted to use some of the
 > >>> ACPI features (brightness of backlight, etc.)
 > >>>
 > >>> I attempted to load acpi_ibm but devd reported no events (running with
 > >>> devd -dD).  What information might be useful to help support this
 > >>> laptop?
 > >>
 > >> Did you set dev.acpi_ibm.0.events=1?
 > >
 > > I don't see this as an option at all.
 > 
 > Setting dev.acpi_ibm.0.events=1 still does not cause the brightness
 > functions to generate events. Could the initialmask and or availmask
 > tie into this in some way?

Have we seen 'sysctl dev.acpi_ibm' from this machine yet?  Maybe clues?
Ideally after kldload acpi_ibm and before any sysctl changes ..

cheers, Ian