---
name: "waybar-jack"
section: "5"
platform: "linux"
package: "waybar"
version: "0.15.0-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/waybar-jack"
---

# waybar-jack(5)

JACK module

## NAME

waybar - JACK module

## DESCRIPTION

The **jack** module displays the current state of the JACK server.

## CONFIGURATION

Addressed by **jack**

**format**: \
 typeof: string \
 default: **{load}%** \
 The format, how information should be displayed. This format is used when other formats aren't specified.

**format-connected**: \
 typeof: string \
 This format is used when the module is connected to the JACK server.

**format-disconnected**: \
 typeof: string \
 This format is used when the module is not connected to the JACK server.

**format-xrun**: \
 typeof: string \
 This format is used for one polling interval when the JACK server reports an xrun.

**realtime**: \
 typeof: bool \
 default: **true** \
 Option to drop real-time privileges for the JACK client opened by Waybar.

**tooltip**: \
 typeof: bool \
 default: **true** \
 Option to disable tooltip on hover.

**tooltip-format**: \
 typeof: string \
 default: **{bufsize}/{samplerate} {latency}ms** \
 The format of information displayed in the tooltip.

**interval**: \
 typeof: integer or float \
 default: 1 \
 The interval in which the information gets polled.

**rotate**: \
 typeof: integer \
 Positive value to rotate the text label (in 90 degree increments).

**max-length**: \
 typeof: integer \
 The maximum length in character the module should display.

**min-length**: \
 typeof: integer \
 The minimum length in characters the module should accept.

**align**: \
 typeof: float \
 The alignment of the label within the module, where 0 is left-aligned and 1 is right-aligned. If the module is rotated, it will follow the flow of the text.

**justify**: \
 typeof: string \
 The alignment of the text within the module's label, allowing options 'left', 'right', or 'center' to define the positioning.

**on-click**: \
 typeof: string \
 Command to execute when clicked on the module.

**on-click-middle**: \
 typeof: string \
 Command to execute when middle-clicked on the module using mousewheel.

**on-click-right**: \
 typeof: string \
 Command to execute when you right-click on the module.

**on-update**: \
 typeof: string \
 Command to execute when the module is updated.

**menu**: \
 typeof: string \
 Action that popups the menu.

**menu-file**: \
 typeof: string \
 Location of the menu descriptor file. There need to be an element of type

GtkMenu with id **menu**

**menu-actions**: \
 typeof: array \
 The actions corresponding to the buttons of the menu.

**expand**: \
 typeof: bool \
 default: false \
 Enables this module to consume all left over space dynamically.

## FORMAT REPLACEMENTS

**{load}**: The current CPU load estimated by JACK.

**{bufsize}**: The size of the JACK buffer.

**{samplerate}**: The sample rate at which the JACK server is running.

**{latency}**: The duration, in ms, of the current buffer size.

**{xruns}**: The number of xruns reported by the JACK server since starting Waybar.

## EXAMPLES

```
"jack": {
	"format": "DSP {}%",
	"format-xrun": "{xruns} xruns",
	"format-disconnected": "DSP off",
	"realtime": true
}
```

## STYLE

- •

  **#jack**

- •

  **#jack.connected**

- •

  **#jack.disconnected**

- •

  **#jack.xrun**