Linux monitor control using DDC (your monitor must support it)
Only brightness and contrast are supported.
Requires: ddcutil
make build
# Set brightness on all monitors
./LinuxMonitorControl -b 50
# Set brightness only on monitor 1
./LinuxMonitorControl -b 50 -d 1
# Set contrast only on monitor 1
./LinuxMonitorControl -c 50 -d 1
See required dependencies here
make dependencies
# If build succeeds
./ddcutil/bin/ddcutil detect