https://bugs.kde.org/show_bug.cgi?id=385743
--- Comment #8 from Rainer Finke <m...@rainer-finke.de> --- If I activate in the energy settings the "Screen Energy Saving", Plasma 5.13 beta will still crash on Wayland once turning on the display after saving energy. >From my point of view, once the display has been turned off and I press again a keyboard key to turn it on again, Plasma tries to connect to it immediately, but my 4K display (Samsung UE28D590D) is quite slow... too slow for Plasma and then kwin_wayland is segfaulting. Please see in the log below, I have attached a more detailed one to this bug. $ journalctl -f -- Logs begin at Tue 2018-02-20 18:01:22 CET. -- Jun 03 22:06:12 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:06:42 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:07:12 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:07:42 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:08:12 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:08:38 pc1 org_kde_powerdevil[1350]: powerdevil: Can't contact ck Jun 03 22:08:38 pc1 org_kde_powerdevil[1350]: powerdevil: We are now into activity "2c18661e-54f5-404e-9fc2-2942df87e639" Jun 03 22:08:38 pc1 org_kde_powerdevil[1350]: powerdevil: () () Jun 03 22:08:38 pc1 org_kde_powerdevil[1350]: powerdevil: () () Jun 03 22:08:38 pc1 org_kde_powerdevil[1350]: powerdevil: No batteries found, loading AC Jun 03 22:08:38 pc1 org_kde_powerdevil[1350]: powerdevil: Activity is not forcing a profile Jun 03 22:08:38 pc1 org_kde_powerdevil[1350]: powerdevil: The profile "AC" tried to activate "DimDisplay" a non-existent action. This is usually due to an installation problem, or to a configuration problem, or simply the action is not supported Jun 03 22:08:42 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:09:12 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:09:42 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:10:12 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:10:42 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:10:53 pc1 org_kde_powerdevil[1350]: powerdevil: Kbd backlight brightness value: 0 Jun 03 22:11:12 pc1 plasmashell[1312]: kf5idletime_kwayland: This plugin does not support polling idle time Jun 03 22:11:18 pc1 kdeinit5[1267]: kscreen: Backend change! KScreen::Config( ) Jun 03 22:11:18 pc1 kdeinit5[1267]: kscreen: Correcting output positions by: QPoint(2147483647,2147483647) Jun 03 22:11:18 pc1 org_kde_powerdevil[1350]: kscreen: Backend change! KScreen::Config( ) Jun 03 22:11:18 pc1 plasmashell[1312]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() Jun 03 22:11:18 pc1 plasmashell[1312]: requesting unexisting screen -1 Jun 03 22:11:18 pc1 plasmashell[1312]: file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderItemDelegate.qml:349:34: Unable to assign [undefined] to bool Jun 03 22:11:18 pc1 plasmashell[1312]: file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderItemDelegate.qml:291:31: Unable to assign [undefined] to QStringList Jun 03 22:11:18 pc1 kernel: kwin_wayland[1201]: segfault at 558d84dfe150 ip 00007f9ffd349c72 sp 00007ffcb096caa0 error 4 in KWinWaylandDrmBackend.so[7f9ffd322000+38000] -- You are receiving this mail because: You are watching all bug changes.