https://bugs.kde.org/show_bug.cgi?id=451579
Bug ID: 451579
Summary: Feature Request - Brightness Control of External
Monitors via Monitor Control Command Set
Product: Powerdevil
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: dark...@nearce.com
Target Milestone: ---
Currently external monitor birghtness is not handled. This is a feature request
to add software support for external monitors brightness via MCCS. An example
program that already does this/might be a good "underpinning" with more
information on the spec/communication is ddcutil (https://www.ddcutil.com/).
As an example, I can use the following ddcutil commands to set both monitor's
brightness to 100%:
$> sudo ddcutil setvcp -d 1 10 100
$> sudo ddcutil setvcp -d 2 10 100
Or 50%:
$> sudo ddcutil setvcp -d 1 10 50
$> sudo ddcutil setvcp -d 2 10 50
As some extra background as for "why" my office has a lot of light in the
morning/when it's snowy outside vs very dark at night, so I regularly need to
adjust monitor brightness throughout the day. It's much more convient to do
that with software. I think adding keyboard controlled/GUI slider based
brightness integration would be a really nice feature for KDE to have for
external monitors.
It would be ideal to eventually be able to have some presets, maybe have a
"default brightness curve" for the day, etc. However, the first step with any
of that would be IMO, exposing basic brightness controls for the monitors.
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