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nixos/plasma: support setting brightness via DDC

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This commit is contained in:
Peter Hoeg 2020-05-26 22:13:33 +08:00
parent 7517ecd701
commit a3aec35383
1 changed files with 19 additions and 0 deletions
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19
nixos/modules/services/x11/desktop-managers/plasma5.nix
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@ -158,6 +158,19 @@ in
example = "vlc"; example = "vlc";
description = "Phonon audio backend to install."; description = "Phonon audio backend to install.";
}; };
supportDDC = mkOption {
type = types.bool;
default = false;
description = ''
Support setting monitor brightness via DDC.
</para>
<para>
This is not needed for controlling brightness of the internal monitor
of a laptop and as it is considered experimental by upstream, it is
disabled by default.
'';
};
}; };
}; };
@ -184,6 +197,12 @@ in
}; };
}; };
# DDC support
boot.kernelModules = lib.optional cfg.supportDDC "i2c_dev";
services.udev.extraRules = lib.optionalString cfg.supportDDC ''
KERNEL=="i2c-[0-9]*", TAG+="uaccess"
'';
environment.systemPackages = with pkgs; with qt5; with libsForQt5; with plasma5; with kdeApplications; environment.systemPackages = with pkgs; with qt5; with libsForQt5; with plasma5; with kdeApplications;
[ [
frameworkintegration frameworkintegration