A patch to make startplasma-x11 invoke ksmserver with --no-lockscreen for the benefit of xscreensaver. Relevant to versions 5.17 → 5.20

startplasma.diff

--- startplasma.cpp.orig        2021-04-11 21:16:44.570404892 +1200
+++ startplasma.cpp     2021-04-11 21:17:22.973819429 +1200
@@ -365,9 +365,7 @@
         if (qEnvironmentVariableIsSet("KDEWM")) {
             ksmserverOptions << QStringLiteral("--windowmanager") << qEnvironmentVariable("KDEWM");
         }
-        if (desktopLockedAtStart) {
-            ksmserverOptions << QStringLiteral("--lockscreen");
-        }
+        ksmserverOptions << QStringLiteral("--no-lockscreen");
     }
 
     const auto exitCode = runSync(QStringLiteral(CMAKE_INSTALL_FULL_BINDIR "/plasma_session"), ksmserverOptions);