D5381: Add brightness control using ddcutil lib

[David Edmundson]

davidedmundson accepted this revision.
This revision is now accepted and ready to land.

REVISION DETAIL
  https://phabricator.kde.org/D5381

To: dvogel, broulik, davidedmundson
Cc: strobach, davidedmundson, plasma-devel, ZrenBot, spstarr, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart, lukas
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/plasma-devel/attachments/20170526/a5e7536a/attachment.html>