How to use the command 'gummy' (with examples)

Gummy is a screen brightness and temperature manager for Linux/X11. It allows users to control the screen temperature, backlight, and pixel brightness. This article will provide examples of various use cases of the ‘gummy’ command.

Use case 1: Set the screen temperature to 3000K

Code:

gummy --temperature 3000

Motivation: Setting the screen temperature to a specific value can help reduce eye strain and provide a more comfortable viewing experience, especially during night time.

Explanation:

• --temperature: Specifies the desired screen temperature in Kelvin.

Example output: The screen temperature is set to 3000K.

Use case 2: Set the screen backlight to 50%

Code:

gummy --backlight 50

Motivation: Adjusting the screen backlight allows users to control the brightness level of their display. A lower backlight setting can save power and reduce strain on the eyes in low-light conditions.

Explanation:

• --backlight: Sets the screen backlight level as a percentage.

Example output: The screen backlight is set to 50%.

Use case 3: Set the screen pixel brightness to 45%

Code:

gummy --brightness 45

Motivation: Controlling the screen pixel brightness can help achieve a comfortable viewing experience by adjusting the brightness level of individual pixels on the screen.

Explanation:

• --brightness: Sets the screen pixel brightness level as a percentage.

Example output: The screen pixel brightness is set to 45%.

Use case 4: Increase current screen pixel brightness by 10%

Code:

gummy --brightness +10

Motivation: Increasing the screen pixel brightness can improve visibility, especially in well-lit environments where the display may appear somewhat dim.

Explanation:

• --brightness: The plus sign followed by a number specifies the percentage by which to increase the current screen pixel brightness.

Example output: The current screen pixel brightness is increased by 10%.

Use case 5: Decrease current screen pixel brightness by 10%

Code:

gummy --brightness -10

Motivation: Reducing the screen pixel brightness can help conserve energy and create a more comfortable viewing experience when working in darker environments.

Explanation:

• --brightness: The minus sign followed by a number specifies the percentage by which to decrease the current screen pixel brightness.

Example output: The current screen pixel brightness is decreased by 10%.

Use case 6: Set the temperature and pixel brightness for the second screen

Code:

gummy --screen 1 --temperature 3800 --brightness 65

Motivation: If a computer is connected to multiple screens, it may be necessary to configure individual screen settings. This use case demonstrates how to set the temperature and pixel brightness for the second screen.

Explanation:

• --screen: Specifies the screen number (starting from 0) for which the settings should be applied.
• --temperature: Sets the screen temperature in Kelvin.
• --brightness: Sets the screen pixel brightness in percentage.

Example output: The temperature of the second screen is set to 3800K, and the pixel brightness is set to 65%.

Conclusion:

The ‘gummy’ command provides a convenient way to manage screen brightness and temperature settings on Linux/X11 systems. With the examples provided in this article, users can easily control their screen temperature, backlight, and pixel brightness to optimize their viewing experience.