https://bugs.kde.org/show_bug.cgi?id=483099
Bug ID: 483099
Summary: Screen energy saving not working with DisplayPort
screen
Classification: Plasma
Product: Powerdevil
Version: 6.0.1
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: julien....@gmail.com
CC: m...@ratijas.tk, natalie_clar...@yahoo.de
Target Milestone: ---
SUMMARY
On my PC, I have 2 screens:
- one connected to DisplayPort (newly purchased),
- one connected via HDMI.
I have an AMD graphics card (newly purchased too).
Putting the HDMI screen to sleep works, while the DisplayPort screen does not
(the screen turns off and turns back on a few seconds later).
Note that on the first attempt (after locking the session for example), the 2
screens turn off and turn on again after the configured delay, then on the 2nd
attempt if I don't touch anything, only the screen in HDMI turns off for good,
and the DisplayPort screen turns off and on again.
I already had this problem with Plasma 5, it is still there with Plasma 6.
STEPS TO REPRODUCE
1. Lock session
2. Wait for screen energy saving
OBSERVED RESULT
HDMI screen is turned off.
DisplayPort screen is turned off and on.
EXPECTED RESULT
HDMI screen is turned off.
DisplayPort screen is turned off.
SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux 2.14
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.7.9-gentoo-x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-9700K CPU @ 3.60GHz
Memory: 31.3 Gio of RAM
Graphics Processor: AMD Radeon RX 7800 XT
ADDITIONAL INFORMATION
If I don't connect to my Plasma wayland session, and I stay on SDDM, everything
works!
SDDM runs under X at the moment.
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