https://bugs.kde.org/show_bug.cgi?id=486412
Bug ID: 486412
Summary: Powerdevil does not detect external display's i2c
interface
Classification: Plasma
Product: Powerdevil
Version: 6.0.4
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: knd...@outlook.com
CC: m...@ratijas.tk, natalie_clar...@yahoo.de
Target Milestone: ---
I use a laptop connected to an external display.
`ddcutil detect` lists the external display at /dev/i2c-13. The user is added
to the i2c group.
The brightness control on the panel does not show this display. It only shows
the laptop display's brightness slider.
Expected: The brightness control either displays both brightness sliders (one
for external and one for internal display), or shows a single slider to control
both sets of brightnesses.
Actual: Only one brightness slider visible. Changing the slider does not affect
external display's brightness.
This could be related to https://bugs.kde.org/show_bug.cgi?id=465256 but the
difference is that I don't have any DDC/powerdevil errors in my journal.
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