Bug 468807

Summary: Monitors not going to sleep on SDDM login screen when SDDM in native Wayland mode with KWin as its compositor
Product: [Plasma] kwin Reporter: S. Umar <umar>
Component: wayland-genericAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: me, nate, xaver.hugl
Priority: NOR    
Version: 5.27.4   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:

Description S. Umar 2023-04-22 12:14:20 UTC 
Hi, I just updated some of my workstations to Fedora 38 and noticed that when logged out the monitors do not go to powersave mode. When I am logged in the powersave mode works fine.

I am running plasma under X11 and noticed that in FC38 the sddm is using kwin_wayland so perhaps that is the issue because previously we were using sddm-x11 but that is no longer possible in Fedora 38.

Also, sometimes the effected machines are using 100%cpu with kwin_wayland when no one is logged in (I ssh'ed into
the machine remotely) but this is not always reproducible.

KDE-Plasma versions 5.27.4, KF5 5.105.0. Thanks!
Comment 1 Zamundaaa 2024-05-09 15:48:30 UTC 

*** This bug has been marked as a duplicate of bug 484015 ***