[ltp] RFC : a hotkey, backlight, and bluetooth driver for SL series thinkpads

[Yves-Alexis Perez]

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On mer, 2009-01-28 at 16:02 -0500, Alexandre Rostovtsev wrote:
>  Please see if the following works.
> Make sure lenovo-sl-laptop is loaded with the "control_backlight=3D1"
> module parameter
> echo 0 > /sys/module/video/parameters/brightness_switch_enabled
> and then restart the X server

brightness_switch_enable only concerns the transmission to userspace. if
Y, then acpi takes care of brighness in kernel, if N it's *passed* to
userspace. So if there's a listening daemon, like gnome-power-manager,
it'll do the job, but may do it wrong if the interface isn't standard.

So yes, removing video may be a better idea. But in the long term I
guess fixing the EC should be a better one, if possible :)

Cheers,
--=20
Yves-Alexis

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