Update on DeviceKit

[Rémi Cardona]

Danny Kukawka a écrit :
> On Mittwoch, 7. Mai 2008, Lennart Poettering wrote:
>> On Wed, 07.05.08 13:47, Holger Macht (hmacht at suse.de) wrote:
>>> Yes, I think of it like following:
>>>
>>> Having a subsystem daemon for power management incuding:
>>>
>>>  org.freedesktop.PowerManagement.*
>>> 				.PowerSupply
>>> 				.CPUFreq
>>> 				.Backlight
>> I think it would be best if backlight control is left to X. For some
>> graphics cards its already properly exported in XRANDR. XRANDR knows
>> about multiple screens, hotplug and stuff, is network transparent and
>> so on. It's also much easier for normal desktop apps like cheese to
>> use the backlight as a flash if its exported via XRANDR.
> 
> And what if there is no X running (e.g. machine runs on tty*) and someone 
> wants to control the brightness? There should be a way to use the available 
> kernel interfaces without X if possible. I would prefer to have brightness 
> handling still in HAL/DeviceKit.

Won't kernel modesetting make this point moot as backlight control will 
be moved down to the kernel anyway?

Once this is done, both DeviceKit/HAL and X will use kernel controls. 
Problem solved.

Cheers

-- 
Rémi Cardona
LRI, INRIA
remi.cardona at lri.fr
remi at gentoo.org