Laptop Panel brightness control

[Timo Hoenig]

On Mon, 2006-05-22 at 17:07 +0100, Richard Hughes wrote:

> On Fri, 2006-05-12 at 11:01 -0400, David Zeuthen wrote:
> > Ugh, the joys of borken hardware. 

Sounds like broken software.

> According to
> https://launchpad.net/distros/ubuntu/+source/gnome-power-manager/+bug/44055 we also need to special case the t42.

As linked from the above URL, I've read the report filed as number
340231 on b.g.o.

Yes, it is true that IBM ThinkPad -- Lenovo ThinkPads, too -- do
directly control the brightness of the display.  No OS intervention, no
driver required; user-space could not care less.  Fn-x combination
pressed, job done.

Assuming that you're reacting on an event coming through the nvram
driver:  You should take this as an notification and not as a request
for action.

> Attach patch does so. Please review.

No, otherwise I -- as outlined above -- it looks like would end up
blacklisting all ThinkPads in 10-laptop-panel-mgm-policy.fdi.

> Richard.

   Timo