https://bugs.kde.org/show_bug.cgi?id=418502
Bug ID: 418502
Summary: better handling of external monitor brightness.
Product: Powerdevil
Version: 5.16.5
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: wishlist
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: mdi...@grulic.org.ar
Target Milestone: ---
To start with, I'm not sure this is the right component. Please advise me which
one if not.
SUMMARY
The lightning in my office varies a lot with weather and time. I also have the
redshift control plasma plugin on. The HW setup is: one notebook with an
external screen, so two screens in total. I have a couple of issues with this
setup.
* The brightness up/down keystrokes (Fn+F11/F12) only handle the notebook's
screen brightness, but not the external screen. I do this everitime I feel my
eyes are straining to handle the low or high brightness independently of the
time of the day.
* I can change the external screen's brightness with`xrandr`, but if redshift
is enabled, it resets it to the brightness it thinks it should have based on
the config and time of the day, only on the external screen (the laptop's
abides my wishes).
STEPS TO REPRODUCE
1. have a laptop (dell precision 5220)
2. attach external screen (dell 22", not sure the model).
3. change brightness with keyboard (external screen does not change).
4. enable redshift control.
5. use `xrandr` to change external screen's brightness (`xrandr --output HDMI-1
--brightness 0.7`; brightness changes, but then redshift takes over and resets)
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 19.10
KDE Plasma Version: 5.62.0-0ubuntu2
KDE Frameworks Version: 5.62.0-0ubuntu1
Qt Version: 5.12.4-1
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