https://bugs.kde.org/show_bug.cgi?id=471524
Bug ID: 471524
Summary: Automatically turning screen on back after "xset dpms
force off" without any user input
Classification: Plasma
Product: KScreen
Version: 5.27.5
Platform: Debian stable
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: ddrea...@ms93.url.com.tw
Target Milestone: ---
Created attachment 159947
--> https://bugs.kde.org/attachment.cgi?id=159947&action=edit
Relevent "journalctl" records
SUMMARY
Very self-explanatory in the previous "Summary" Section"
STEPS TO REPRODUCE
1. Under KDE plasma desktop environement, open a terminal, and execute "xset
dpms force off"
2. The screen goes blank, followed by showing "no HDMI signal". (Very good till
now)
3. After a couple of seconds (about 5-10 sec), without any user input, the
screen turns on and show the KDE desktop environment again.
This phenomenon holds even by executing: bash -c "sleep 1; xset dpms force off"
OBSERVED RESULT
Screen re-turning on spontaneously without any user input (both keyboard &
mouse)
EXPECTED RESULT
The screen should stay "Turn off" untill user input.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Debian GNU/Linux 12(Bookworm)
(available in About System)
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
ADDITIONAL INFORMATION
I will attach the relevent records from "journalctl" during this event.
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