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.
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