On Mon, Nov 21, 2011 at 3:33 PM, Simon Schampijer <si...@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 >> an >> > option to change the brightness and to take a screenshot. Both actions >> > are only available via the keyboard as of today." [1] >> >> 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. >> >> paul > > 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: https://lwn.net/Articles/423170/ https://wiki.kubuntu.org/Kernel/Debugging/Backlight Peter _______________________________________________ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel