On 05/17/2017 06:08 PM, Rob Owens wrote: > On Wed, May 17, 2017 at 8:48 AM, Lars Noodén <[email protected]> wrote: > >> On 05/04/2017 03:42 PM, Lars Noodén wrote: >>> I'm having trouble adjusting the backlight on my LCD screen in RC 1 with >>> XFCE4. No matter what I've tried so far, it stays where it is. With >>> Ubuntu 16.04, things are pre-configured and it is just a matter of >>> pressing the right function buttons. However, with Devuan Jessie RC 1 >>> the right commands are hard to figure out. >>> >>> Here is what I've tried so far to change the backlight intensity. None >>> have any effect: >>> >>> $ xrandr --output default --brightness 0 >>> xrandr: Gamma size is 0. >> > > I did this just yesterday on a laptop running Funtoo with Fluxbox, where > the built-in function keys for dimming did not work. But I specified a > decimal, like this: > > xrandr --output default --brightness .7 > > That worked for me. Maybe the problem is that you specified zero for the > brightness.
Thanks for the reply. It seems that I cannot get anywhere with xrandr on my system: $ xrandr --output default --brightness .7 xrandr: Gamma size is 0. $ xrandr --output default --brightness .1 xrandr: Gamma size is 0. $ xrandr --output default --brightness .9 xrandr: Gamma size is 0. $ xrandr --output default --brightness 1.9 xrandr: Gamma size is 0. $ xrandr --output default --brightness 2 xrandr: Gamma size is 0. $ xrandr --current xrandr: Failed to get size of gamma for output default Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080 default connected 1920x1080+0+0 0mm x 0mm 1920x1080 77.00* Are there any preparations that need to be made first? Regards, Lars _______________________________________________ Dng mailing list [email protected] https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
