https://bugs.kde.org/show_bug.cgi?id=502151
Bug ID: 502151
Summary: Dual display suspend timeout problem and blackscreen
while playing games
Classification: Applications
Product: systemsettings
Version: 6.3.3
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kcm_kscreen
Assignee: kscreen-bugs-n...@kde.org
Reporter: v_josi...@aol.com
CC: plasma-b...@kde.org
Target Milestone: ---
gpu: AMD Radeon PowerColor rx 6600 Fighter
I have two displays connected LG 22" and Dell 27".
LG is connected via HDMI and Dell is connected via DisplayPort to HDMI cable.
Problem is with Dell monitor when enter suspend after timeout it immediately
turn on again.
When both displays are active suspend work but after second suspending. First
both displays suspend and immediately turn on and after second timeout displays
suspend again.
When just LG monitor is active suspend works fine.
I have tried to switch cables. When switch Dell to HDMI and LG to DisplayPort,
Dell display suspend but LG turn on.
Also Dell monitor have black screen when play games on Steam.
If switch to LG to play, game works normally.
I played games on Sway and everything was fine.
STEPS TO REPRODUCE
1 . Wait for timeout to suspend displays
2. Play game on steam
OBSERVED RESULT
1. Dell monitor turns off and on
2. Dell display black screen
EXPECTED RESULT
1. Display sleep
2. Play game normally
SOFTWARE/OS VERSIONS
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Arch/plasma-desktop-6.3.3-1
KDE Plasma Version: 6.3.3
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
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