1BRIGHTNESSCTL(1)                 brightnessctl                BRIGHTNESSCTL(1)
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NAME

6       brightnessctl - read and control device brightness
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SYNOPSIS

11       brightnessctl [options] [operation] [value...]
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OPTIONS

16       -h, --help
17           Print this help.
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20       -l, --list
21           List devices with available brightness controls.
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24       -q, --quiet
25           Suppress output.
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28       -p, --pretend
29           Do not perform write operations.
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32       -m, --machine-readable
33           Produce machine-readable output.
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36       -n, --min-value=VALUE
37           Set minimum brightness when using delta values, defaults to 1.
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40       -e, --exponent=K
41           Changes   percentage   scaling  curve  to  exponential  (linear  by
42           default). Default exponent is 4.
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44           Percentage equation: % = [VALUE]^[K] * [MAX] * 100^-[K].
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46           The exponential curve may make the adjustments perceptually equal.
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49       -s, --save
50           Save state in a temporary file.
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53       -r, --restore
54           Restore previously-saved state.
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57       -d, --device=DEVICE
58           Specify device name (can be a wildcard).
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61       -c, --class=CLASS
62           Specify device class.
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65       -v, --version
66           Print version and exit.
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OPERATIONS

71       i, info
72           Get device info.
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75       g, get
76           Get the current brightness of the device.
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79       m, max
80           Get the maximum brightness of the device.
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83       s, set VALUE
84           Set the brightness of the device.
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87   VALUES
88       You may specify VALUE for the set command in absolute or relative form,
89       and as a value or a delta from the current value. For example:
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91       brightnessctl set 500
92           Sets brightness to 500.
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94       brightnessctl set 50%
95           Sets brightness to 50% of the maximum.
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97       brightnessctl set 50-
98           Subtracts 50 from the current brightness.
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100       brightnessctl set +10
101           Adds 10 to the current brightness.
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103       brightnessctl set 50%-
104           Subtracts 50% of the maximum from the current brightness.
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106       brightnessctl set +10%
107           Adds 10% of the maximum to the current brightness.
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AUTHORS

110       Maintained  by  Mykyta  Holubakha, who is assisted by other open source
111       contributors. For more  information  about  brightnessctl  development,
112       visit:
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114       https://github.com/Hummer12007/brightnessctl
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118brightnessctl                    24th Jan 2018                BRIGHTNESSCTL(1)