https://bugs.kde.org/show_bug.cgi?id=465887
Bug ID: 465887
Summary: Primary display blinks/flickers once upon waking up
from sleep in Wayland session
Classification: Plasma
Product: kwin
Version: 5.27.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multi-screen
Assignee: kwin-bugs-n...@kde.org
Reporter: shallp...@gmail.com
Target Milestone: ---
SUMMARY
I have two identical 4k LG monitors and after updating to 5.27, I notice that
the primary monitor, when waken up from sleep after inactivity, will
blink/flicker once quickly then resumes normal.
This only happens to the primary display. And if I turn off my secondary
display physically, it does not happen to the only one displayer either, so
seems like related to the recent change of multi-screen support from 5.27
GPU is AMD 5700xt with open source driver from the kernel.
STEPS TO REPRODUCE
1. Leave the PC idle for some inactivity
2. Wait until the monitors to enter sleep mode
2. wake up the monitors by touching the mouse
OBSERVED RESULT
The primary display then:
1. at first it is turned off and dark as in sleep mode
2. upon waken up, it suddenly goes max brightness
3. then suddenly goes min brightness, so creates a sense of "flickering" or
"blinking"
4. then it will be gradually lighting up to normal brightness within about 1
second.
EXPECTED RESULT
The wake up behavior like before 5.27 or like the secondary display in 5.27
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE under latest Arch Linux
KDE Plasma Version: 5.27.0-1
--
You are receiving this mail because:
You are watching all bug changes.
