Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 27 Jan 2013 09:59:58 -0800
From:      Kevin Oberman <kob6558@gmail.com>
To:        Eitan Adler <lists@eitanadler.com>
Cc:        Glen Barber <gjb@freebsd.org>, freebsd-acpi@freebsd.org
Subject:   Re: what is required to support a new laptop?
Message-ID:  <CAN6yY1swUtV08P55=zhkCQsDPxnm-jC12vMHg=yQAbUxH-aQzA@mail.gmail.com>
In-Reply-To: <CAF6rxgm6-GtxR%2Bcb9uKiAs7ahA16MmtcQKkhOaL8Jxrzq2kXcw@mail.gmail.com>
References:  <CAF6rxg=c=JN=N7NkWYdRHbgAqQTPGoFr=uLuXgiCfh%2BDdd-C4w@mail.gmail.com> <20130125140953.GA1328@glenbarber.us> <20130125141202.GB1328@glenbarber.us> <CAN6yY1vku1oJ4UpvGkh-nES3VNr2JTA39ssXhYaw3t%2BA3nMR_w@mail.gmail.com> <CAF6rxgm6-GtxR%2Bcb9uKiAs7ahA16MmtcQKkhOaL8Jxrzq2kXcw@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, Jan 25, 2013 at 9:25 PM, Eitan Adler <lists@eitanadler.com> wrote:
> On 25 January 2013 14:51, Kevin Oberman <kob6558@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.
-- 
R. Kevin Oberman, Network Engineer
E-mail: kob6558@gmail.com



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAN6yY1swUtV08P55=zhkCQsDPxnm-jC12vMHg=yQAbUxH-aQzA>