Bug 507109 - Secondary screen not turning off during inactivity
Summary: Secondary screen not turning off during inactivity
Status: RESOLVED WORKSFORME
Alias: None
Product: plasmashell
Classification: Plasma
Component: Power management & brightness (other bugs)
Version First Reported In: 6.4.0
Platform: Arch Linux Linux
: NOR normal
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords: multiscreen, regression
Depends on:
Blocks:
 
Reported: 2025-07-16 10:30 UTC by Simone Lazzaris
Modified: 2025-11-01 03:48 UTC (History)
2 users (show)

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Version Fixed/Implemented In:
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Description Simone Lazzaris 2025-07-16 10:30:53 UTC 
SUMMARY
I have a dual screen setup, and I want the screen to turn off after 10 min of inactivity
The primary screen indeed turns off correctly, but the secondary screen doesn't and.

STEPS TO REPRODUCE
1. Connect two monitor
2. Wait 10 minutes
3. The primary screen is turned off but the secondary is not

OBSERVED RESULT
Only one monitor is turned off after 10 min of inactivity

EXPECTED RESULT
Both monitor should turn off.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.4.3
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1
Kernel Version: 6.15.6-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 32 GiB of RAM (31.2 GiB usable)
Graphics Processor: AMD Radeon RX 7600

ADDITIONAL INFORMATION
Not sure if it is relevant, but my primary screen is connected to the second port of the graphic card (using a display port cable), while the secondary is on the first one, with an HDMI cable,
I started getting this issue around 6.4.0 version of kde, it was working correctly  before.
Comment 1 TraceyC 2025-10-02 19:51:06 UTC 
Thanks for the bug report. I'm sorry we weren't able to look into this until now.

If this is still a problem on your system, can you share a screenshot of your Power Management settings page?

System Settings -> Power Management -> On AC Power

Thanks!
Comment 2 Bug Janitor Service 2025-10-17 03:47:11 UTC 
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 3 Bug Janitor Service 2025-11-01 03:48:07 UTC 
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.