ddcutil:tldr:02482

ddcutil: Change the brightness (option 0x10) of display 1 to 50%.

ddcutil

$ ddcutil --display ${1} setvcp ${10} ${50}

try on your machine

This command is using the ddcutil tool to communicate with a display device. Here is a breakdown of the command:

ddcutil is the name of the tool being executed.
--display ${1} specifies the display device to be controlled. ${1} is a placeholder for the argument you provide when running the command, which should be the identifier of the display device.
setvcp is the action being performed. It is used to set the value of a Video Electronics Standards Association (VESA) Command Set (VCP) feature on the display.
${10} is the first argument after setvcp and specifies the VCP feature to be changed. Again, ${10} is a placeholder for the value you provide when running the command.
${50} is the second argument after ${10} and specifies the new value for the VCP feature. Similarly, ${50} is a placeholder for the desired value.

In summary, this command is using the ddcutil tool to communicate with a display device identified by ${1} and set the specified VCP feature ${10} to a new value of ${50}.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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