https://bugs.kde.org/show_bug.cgi?id=450531
--- Comment #5 from Patrick Silva <bugsefor...@gmx.com> --- I was able to reproduce the black screen with cursor again, but coredumpctl command gave me no coredump this time. 1. change display scale from 100% to 125% on X11 2. logout 3. quickly type your password and press enter/return key Here is the journalctl log: abr 04 10:16:23 Arch-PC systemd[2347]: Finished Exit the Session. abr 04 10:16:23 Arch-PC systemd[2347]: Reached target Exit the Session. abr 04 10:16:23 Arch-PC systemd[1]: user@977.service: Deactivated successfully. abr 04 10:16:23 Arch-PC systemd[1]: Stopped User Manager for UID 977. abr 04 10:16:23 Arch-PC audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=user@977 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' abr 04 10:16:23 Arch-PC kernel: kauditd_printk_skb: 17 callbacks suppressed abr 04 10:16:23 Arch-PC kernel: audit: type=1131 audit(1649078183.558:287): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=user@977 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' abr 04 10:16:23 Arch-PC systemd[1]: Stopping User Runtime Directory /run/user/977... abr 04 10:16:23 Arch-PC systemd[1]: run-user-977.mount: Deactivated successfully. abr 04 10:16:23 Arch-PC systemd[1]: user-runtime-dir@977.service: Deactivated successfully. abr 04 10:16:23 Arch-PC systemd[1]: Stopped User Runtime Directory /run/user/977. abr 04 10:16:23 Arch-PC audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=user-runtime-dir@977 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' abr 04 10:16:23 Arch-PC systemd[1]: Removed slice User Slice of UID 977. abr 04 10:16:23 Arch-PC systemd[1]: user-977.slice: Consumed 1.620s CPU time. abr 04 10:16:23 Arch-PC kernel: audit: type=1131 audit(1649078183.568:288): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=user-runtime-dir@977 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' abr 04 10:16:27 Arch-PC dbus-daemon[782]: [session uid=1003 pid=782] Activating via systemd: service name='org.kde.krunner' unit='plasma-krunner.service' requested by ':1.179' (uid=1003 pid=2458 comm="/usr/bin/kglobalaccel5") abr 04 10:16:27 Arch-PC systemd[770]: Starting KRunner... abr 04 10:16:27 Arch-PC dbus-daemon[782]: [session uid=1003 pid=782] Successfully activated service 'org.kde.krunner' abr 04 10:16:27 Arch-PC systemd[770]: Started KRunner. abr 04 10:16:28 Arch-PC krunner[2550]: QCommandLineParser: argument list cannot be empty, it should contain at least the executable name abr 04 10:16:30 Arch-PC systemd[1]: systemd-localed.service: Deactivated successfully. abr 04 10:16:30 Arch-PC audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-localed comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' abr 04 10:16:30 Arch-PC kernel: audit: type=1131 audit(1649078190.548:289): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-localed comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' abr 04 10:16:30 Arch-PC audit: BPF prog-id=0 op=UNLOAD abr 04 10:16:30 Arch-PC audit: BPF prog-id=0 op=UNLOAD abr 04 10:16:30 Arch-PC audit: BPF prog-id=0 op=UNLOAD abr 04 10:16:30 Arch-PC kernel: audit: type=1334 audit(1649078190.601:290): prog-id=0 op=UNLOAD abr 04 10:16:30 Arch-PC kernel: audit: type=1334 audit(1649078190.601:291): prog-id=0 op=UNLOAD abr 04 10:16:30 Arch-PC kernel: audit: type=1334 audit(1649078190.601:292): prog-id=0 op=UNLOAD abr 04 10:16:31 Arch-PC krunner[2550]: kf.sonnet.core: Sonnet: Unable to load plugin "/usr/lib/qt/plugins/kf5/sonnet/sonnet_hspell.so" Error: "Cannot load library /usr/lib/qt/plugins/kf5/sonnet/sonnet_hspell.so: (libhspell.so.0: não é possível abrir arquivo compartilhado: Arquivo ou diretório inexistente)" abr 04 10:16:31 Arch-PC krunner[2550]: kf.sonnet.core: Sonnet: Unable to load plugin "/usr/lib/qt/plugins/kf5/sonnet/sonnet_hspell.so" Error: "Cannot load library /usr/lib/qt/plugins/kf5/sonnet/sonnet_hspell.so: (libhspell.so.0: não é possível abrir arquivo compartilhado: Arquivo ou diretório inexistente)" abr 04 10:16:31 Arch-PC qdbus[2173]: Cannot find 'org.kde.KSplash.setStage' in object /KSplash at org.kde.KSplash abr 04 10:16:31 Arch-PC systemd[770]: Finished KSplash "ready" Stage. abr 04 10:16:31 Arch-PC dbus-daemon[782]: [session uid=1003 pid=782] Activating via systemd: service name='org.kde.runners.baloo' unit='plasma-baloorunner.service' requested by ':1.185' (uid=1003 pid=2550 comm="/usr/bin/krunner") abr 04 10:16:31 Arch-PC systemd[770]: Starting KRunner provider for baloo file indexer... abr 04 10:16:32 Arch-PC dbus-daemon[782]: [session uid=1003 pid=782] Successfully activated service 'org.kde.runners.baloo' abr 04 10:16:32 Arch-PC systemd[770]: Started KRunner provider for baloo file indexer. abr 04 10:16:33 Arch-PC systemd[770]: Started Konsole - Terminal. abr 04 10:16:33 Arch-PC kwin_x11[2426]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 1739, resource id: 29360210, major code: 3 (GetWindowAttributes), minor code: 0 abr 04 10:16:33 Arch-PC kwin_x11[2426]: qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 1740, resource id: 29360210, major code: 14 (GetGeometry), minor code: 0 abr 04 10:16:34 Arch-PC PackageKit[755]: get-updates transaction /5_aeacdbab from uid 1003 finished with success after 3ms abr 04 10:16:34 Arch-PC kernel: r8169 0000:04:00.0 enp4s0: Rx ERROR. status = 352ac5ed abr 04 10:16:35 Arch-PC dbus-daemon[433]: [system] Activating via systemd: service name='org.freedesktop.locale1' unit='dbus-org.freedesktop.locale1.service' requested by ':1.208' (uid=1003 pid=2434 comm="/usr/lib/DiscoverNotifier") abr 04 10:16:35 Arch-PC audit: BPF prog-id=63 op=LOAD abr 04 10:16:35 Arch-PC audit: BPF prog-id=64 op=LOAD abr 04 10:16:35 Arch-PC audit: BPF prog-id=65 op=LOAD abr 04 10:16:35 Arch-PC systemd[1]: Starting Locale Service... abr 04 10:16:35 Arch-PC kernel: audit: type=1334 audit(1649078195.805:293): prog-id=63 op=LOAD abr 04 10:16:35 Arch-PC kernel: audit: type=1334 audit(1649078195.805:294): prog-id=64 op=LOAD abr 04 10:16:35 Arch-PC kernel: audit: type=1334 audit(1649078195.805:295): prog-id=65 op=LOAD abr 04 10:16:35 Arch-PC dbus-daemon[433]: [system] Successfully activated service 'org.freedesktop.locale1' abr 04 10:16:35 Arch-PC systemd[1]: Started Locale Service. abr 04 10:16:35 Arch-PC audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-localed comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' abr 04 10:16:35 Arch-PC kernel: audit: type=1130 audit(1649078195.861:296): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-localed comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' abr 04 10:16:36 Arch-PC kernel: r8169 0000:04:00.0 enp4s0: Rx ERROR. status = 352ac5ea abr 04 10:16:36 Arch-PC kernel: r8169 0000:04:00.0 enp4s0: Rx ERROR. status = 352ac5ee abr 04 10:16:38 Arch-PC plasma_waitforname[1977]: org.kde.knotifications: WaitForName: Service was not registered within timeout abr 04 10:16:38 Arch-PC dbus-daemon[782]: [session uid=1003 pid=782] Activated service 'org.kde.KSplash' failed: Process org.kde.KSplash exited with status 1 abr 04 10:16:42 Arch-PC pamac-tray-plas[2435]: updates_checker.vala:101: 4 updates found If I wait 1 minute between the steps 2 and 3, my session starts correctly. I use systemd startup if it matters. Unfortunatly black screen with cursor occurs often on my system and sometimes several coredumps occur after logout and login. I have reported some bugs regarding this: bug 451939 (read comment 4) bug 450320 -- You are receiving this mail because: You are watching all bug changes.