xbacklight
Utility to adjust backlight brightness using the RandR extension. More information: <https://gitlab.freedesktop.org/xorg/app/xbacklight>.
RUN apt-get update && \
apt-get install -y xbacklight
RUN apt-get update && \
apt-get install -y xbacklight
RUN apk add xbacklight
RUN pacman -S --noconfirm xbacklight
RUN apt-get update && \
apt-get install -y xbacklight
RUN dnf install -y xbacklight
RUN apt-get update && \
apt-get install -y xbacklight