https://bugs.kde.org/show_bug.cgi?id=499240
Bug ID: 499240
Summary: No brightness slider for external monitor if it’s
plugged in after login
Classification: Plasma
Product: plasmashell
Version: master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Brightness and Color widget
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: 1.0
SUMMARY
I don’t have a brightness slider if I plug the external monitor after login.
I experience the bug both with HDMI onto my usb-C dock, and with direct HDMI
connection.
I didn’t try DisplayPort or another external screen.
Logging out and back in fixes the problem.
STEPS TO REPRODUCE
1. Log into Plasma
2. Plug an external monitor supported by `ddcutil`
OBSERVED RESULT
There’s no brightness slider for my external monitor.
EXPECTED RESULT
There’s a brightness slider for my monitor.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
Kernel Version: 6.12.10-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx
Memory: 13.5 Gio of RAM
Graphics Processor: AMD Radeon Vega 10 Graphics
Manufacturer: LENOVO
Product Name: 20NFCTO1WW
System Version: ThinkPad E595
ADDITIONAL INFORMATION
The screen is a Dell P2423D.
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