Monitor Mode

This script allows you to control various settings of a monitor connected via DDC/CI, including brightness, contrast, volume, and color adjustments (red, green, blue). It also lets you switch between different display modes. The script uses the ddcutil command to interact with the monitor.

Features

• Brightness Control: Get or change the brightness of the monitor.
• Darkness Control: Get or change the darkness of the monitor.
• Contrast Control: Get or change the contrast of the monitor.
• Volume Control: Get or change the volume level of the monitor.
• Color Adjustment: Adjust red, green, and blue color channels.
• Display Mode Switching: Switch between predefined monitor modes (e.g., Gamer 1, FPS Mode, etc.).

Requirements

• ddcutil: This utility is required to communicate with the monitor over DDC/CI.
• i2c-dev module for I2C communication.

Installation

1. Ensure ddcutil is installed. You can install it via your package manager or from source.

   • For Ubuntu: sudo apt install ddcutil
   • For other systems, refer to the ddcutil documentation.

2. Ensure the i2c-dev module is loaded by running:

   sudo modprobe i2c-dev
   

Usage

./monitor_control [OPTIONS]

Available Options:

-l <value_of_brightness>

Set the brightness (value between 0 and 100).

-d <value_of_brightness>

Set the darkness (value between 0 and 100).

Example:

./monitor_control -l 50

This sets the brightness to 50.

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-c <value_of_contrast>

Set the contrast (value between 0 and 100).

Example:

./monitor_control -c 70

This sets the contrast to 70.

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-m <mode_of_the_monitor>

Set the display mode. Accepts:

0 for Default Mode
1 for Gamer 1 Mode
2 for Gamer 2 Mode
3 for Game 3 Mode
fps for FPS Mode
racing for Racing Mode
rts for RTS Mode
Or a custom hex value (e.g., 0x0e for Gamer 1 Mode).

Example:

./monitor_control -m 1

This changes to Gamer 1 mode.

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-v <value_of_volume>

Set the volume (value between 0 and 100).

Example:

./monitor_control -v 60

This sets the volume to 60.

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-r <value_of_red>

Set the red color channel (value between 0 and 100).

Example:

./monitor_control -r 80

This sets the red channel to 80.

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-g <value_of_green>

Set the green color channel (value between 0 and 100).

Example:

./monitor_control -g 70

This sets the green channel to 70.

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-b <value_of_blue>

Set the blue color channel (value between 0 and 100).

Example:

./monitor_control -b 60

This sets the blue channel to 60.

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Get Current Values:

For any of the options (-l, -c, -v, -r, -g, -b), use g as the argument to get the current value.

Example:

./monitor_control -l g

This will display the current brightness value.

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Mute/Unmute Volume:

To mute or unmute the volume, pass m as the argument to -v.

Example:

./monitor_control -v m

This toggles mute/unmute.

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Bugs

Contrast has bug where the value is set but the monitor don't accept. Running ddcutil --sn=WXDO4XA004311 setvcp 0x12 60 will set the constrast but it will output: Verification failed for feature 12 But the screen will change, the monitor OSD will show the previous value without updating...