94 lines
2.2 KiB
Markdown
94 lines
2.2 KiB
Markdown
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## awesome-brightness
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Brightness indicator/control widget for [awesome wm](https://awesomewm.org/)
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based on ``xbacklight`` or ``brightnessctl``.
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### Dependencies
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The module requires either `xbacklight` or `brightnessctl` to work.
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Thus, on archlinux, you'll need to install at least one of the following
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system packages:
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- [acpilight](https://archlinux.org/packages/extra/any/acpilight/) or
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[xorg-xbacklight](https://archlinux.org/packages/extra/x86_64/xorg-xbacklight/) for `xbacklight`
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- [brightnessctl](https://archlinux.org/packages/extra/x86_64/brightnessctl/) for `brightnessctl`
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I've experienced `xorg-xbacklight` not work on certain laptops. So, if you
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find that the widget is not working, try a different backend.
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### Usage
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In your `~/.config/awesome/rc.lua`:
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```lua
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local deficient = require("deficient")
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-- instanciate widget
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local brightness_ctrl = deficient.brightness {
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-- pass options here
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}
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-- add widget to the wibox:
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s.mywibox:setup {
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...,
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{ -- Right widgets
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...,
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brightness_ctrl.widget,
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},
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}
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```
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Note that you need to pass `.widget` to the wibox, not the instance itself!
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The flag `brightness_ctrl.is_valid` indicates successful initialization.
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### Usage options
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Full example:
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```lua
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local brightness_ctrl = require("deficient.brightness") {
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backend = nil,
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step = 5,
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timeout = 3,
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levels = {1, 25, 50, 75, 100},
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}
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```
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`backend`
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Picks command with which to perform brightness queries and updates.
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Allowed values are `nil` (meaning *autodetect*), `"xbacklight"` or
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`"brightnessctl"`. Default: `nil`.
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`step`
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How many percentage points to increase or decrease the brightness level when
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clicking the widget. Default: 3.
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`timeout`
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Interval in seconds at which to check the current brightness level and update
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the widget text. Default: 5.
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`levels`
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Cycle through these brightness percentages on middle-click.
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Default: ``{1, 25, 50, 75, 100}`.
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### Troubleshooting
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If you get errors on startup, try executing `xbacklight -get` or
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`brightnessctl -c backlight get` in a terminal.
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If you get the error "No outputs have backlight property", make sure you have
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installed an appropriate display driver, e.g. for intel cards:
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```bash
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sudo pacman -S xf86-video-intel
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```
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You may need to restart afterwards.
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