freebsd-mobile Digest, Vol 539, Issue 2

[Kevin Oberman]

On Thu, Feb 5, 2015 at 2:54 PM, PeerCorps Trust Fund <ipc at peercorpstrust.org
> wrote:

> Hi Lars, Ian,
>
> Might either of you (or anyone else) have an idea about how to turn the
> touchpad on the x230 completely OFF? I prefer the finger mouse and the
> touchpad just gets in the way. Much of what I've read in the manual and on
> the web seems to be outdated and revolves around configuring xorg. Is it a
> matter of adding hw.psm.synaptics_support="0" to /boot/loader.conf?
>
> On a related note, is there a way to set the following options at boot?
>
> # kldload acpi_ibm
> # kldload acpi_call
> # acpi_call -p '\VBRC' -i 7
>
> M
>
>
Is disabling the TouchPad no longer accessible in the BIOS setup? It's been
on every X and T I have run into since IBM  stopped using a proprietary
Windows tool to touch BIOS configuration instead of the normal F1 at boot
time. I found it there on my T520, one generation older than the X230, I
believe.

If I recall correctly, "acpi_call -p '\VBRC' -i 7" sets the brightness. You
can load the modules by entering them in /boot/loader.conf, e.g.
"acpi_ibm_load="YES"".

The acpi_call can be added to init, but is probably not essential any more
as brightness now works in head and the patch works fine on 10. You will
need to patch the system, but then the brightness buttons as well as the
hw.acpi.video.lcd0 values to set brightness on battery and AC. The patches
are to /usr/src/dev/drm2/i915/ Look for the patches in
/usr/src/sys/dev/drm2/i915/intel_opregion.c, i915_drv.h, and i915_irq.c and
were committed to head in r270516.

The author (adrian@) has declined to MFC, but has stated that someone else
can. I'm hoping someone will.
--
Kevin Oberman, Network Engineer, Retired
E-mail: rkoberman at gmail.com