[redshift] temp-day=6500 temp-night=3500 ; Smooth transition=1 ; Brightness change between day and night brightness-day=1.0 brightness-night=0.8 ; Do not change Gamma correction at day, but compensate luminance loss at night gamma-day=1.0 gamma-night=0.7 ; /sys/class/backlight is empty :( And DDC/CI is not implemented by my monitors, so software adjustement... Less dynamic... adjustment-method=randr ; Let's set Paris as main location to avoid random approximations location-provider=manual [manual] lat=48.6 lon=2.3