[Sugar-devel] [FEATURES] Display Device
pbrobinson at gmail.com
Mon Nov 21 10:41:58 EST 2011
On Mon, Nov 21, 2011 at 3:33 PM, Simon Schampijer <simon at schampijer.de> wrote:
> El 21/11/11 15:18, Paul Fox escribió:
>> simon wrote:
>> > Hi,
>> > I would like to propose the following Feature to enhance the Sugar
>> > learning environment:
>> > "Add a frame device to control the display. The idea is to add their
>> > option to change the brightness and to take a screenshot. Both actions
>> > are only available via the keyboard as of today." 
>> oh, good idea. in fact, i have another job for it to do. :-)
>> it would be great if it could switch the display from color to
>> monochrome, as well. see my email on automatic backlight control,
>> which i've composed but haven't sent yet. i'll do so right now.
> Hi Paul,
> I just looked at olpc-kbdshim the olpc-brightness for how we adjust the
> brightness on the XO. Looks like we simply echo the values to the files like
> '/sys/class/backlight/dcon-bl/brightness'. I wonder what the generic
> solution is for that (Sugar on other devices).
> From a quick test, I have the following files on my T61:
> /sys/class/backlight/intel_backlight/max_brightness and
> /sys/class/backlight/intel_backlight/actual_brightness which change
> accordingly when adjusting the brightness. But I guess there is a generic
> tool for doing that...?
> /me should probably have a look what GNOME is doing...
There's recently been introduced a generic backlight class so I think
its all being converted over to that. Its like the IBM one in
/sys/class/backlight but I'm not sure the full details for
manipulating it programaticly but I'm sure its documented somewhere.
Some details are:
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