Bug 509278 - No longer possible to log in to the KDEneon login manager
Summary: No longer possible to log in to the KDEneon login manager
Status: CLOSED NOT A BUG
Alias: None
Product: neon
Classification: KDE Neon
Component: Packages User Edition (other bugs)
Version First Reported In: unspecified
Platform: Neon Linux
: NOR major
Target Milestone: ---
Assignee: Neon Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-09-08 16:01 UTC by bluelupo
Modified: 2025-09-25 07:18 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments
Step 1 (2.15 MB, image/jpeg)
2025-09-08 16:01 UTC, bluelupo
Details
Step 2 (2.21 MB, image/jpeg)
2025-09-08 16:02 UTC, bluelupo
Details
Step 3 (1.97 MB, image/jpeg)
2025-09-08 16:02 UTC, bluelupo
Details

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Description bluelupo 2025-09-08 16:01:08 UTC
Created attachment 184809 [details]
Step 1

The following packages were updated today (as of 09/08/2025) via Discover. This worked without any errors. After rebooting the system, I wanted to log in to the KDE desktop using the KDEneon login manager.

Step 1:
Entering the password works correctly.

Step 2:
Pressing ENTER had no effect. Normally, the desktop would now appear (if the password was entered correctly).

Step 3:
The password entered remains grayed out and no further input via mouse or keyboard is possible.


Step 4:
Only after pressing ENTER again does the KDE desktop start.

After each reboot, I can reproduce this behavior in the login manager, even on another laptop. Before updating the packages, the login manager behaved correctly and worked without any problems.

I took three pictures with my smartphone to illustrate the issue.


Updates packages:
kf6-extra-cmake-modules
Aktualisierung auf neue Version 6.17.0-0zneon+24.04+noble+release+build31
kf6-kcalendarcore
Aktualisierung auf neue Version 6.17.0-0zneon+24.04+noble+release+build17
kf6-kcontacts
Aktualisierung auf neue Version 6.17.0-0zneon+24.04+noble+release+build21
kf6-kio
Aktualisierung auf neue Version 6.17.0-0zneon+24.04+noble+release+build55
kf6-kwallet
Aktualisierung auf neue Version 6.17.0-0zneon+24.04+noble+release+build41
kf6-kwindowsystem
Aktualisierung auf neue Version 6.17.0-0zneon+24.04+noble+release+build32
kpim6-kdepim-runtime
Aktualisierung auf neue Version 4:25.08.0-0zneon+24.04+noble+release+build42
kpim6-libkgapi
Aktualisierung auf neue Version 25.08.0-1zneon+24.04+noble+release+build23
libaccounts-qt5-1
Aktualisierung auf neue Version 1.17-0zneon+24.04+noble+release+build3
libaccounts-qt6-1
Aktualisierung auf neue Version 1.17-0zneon+24.04+noble+release+build3
neon-essentials-desktop
Aktualisierung auf neue Version 0.5+p24.04+vrelease+git20250908.0132
neon-settings-2
Aktualisierung auf neue Version 0.5+p24.04+vrelease+git20250908.0132



SUMMARY
Without pressing an additional key and waiting for a certain amount of time, it is no longer possible to log in to the KDE deskt

STEPS TO REPRODUCE
see obove
 

OBSERVED RESULT
see obove

EXPECTED RESULT
Correct login without pressing any further keys

SOFTWARE/OS VERSIONS
Operating System: KDE neon User Edition
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 6.14.0-29-generic (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-3320M CPU @ 2.60GHz
Memory: 8 GiB of RAM (7.6 GiB usable)
Graphics Processor: Intel® HD Graphics 4000
Manufacturer: LENOVO
Product Name: 2347A31
System Version: ThinkPad T430

ADDITIONAL INFORMATION
Comment 1 bluelupo 2025-09-08 16:02:11 UTC
Created attachment 184810 [details]
Step 2
Comment 2 bluelupo 2025-09-08 16:02:37 UTC
Created attachment 184811 [details]
Step 3
Comment 3 Carlos De Maine 2025-09-08 22:41:43 UTC
can you get to a vt (virtual terminal) ??  ctl & alt & F3 ?? or ssh into the stuck machine ?? if so we can get some debug from the journal..
Comment 4 bluelupo 2025-09-09 09:44:09 UTC
(In reply to Carlos De Maine from comment #3)
> can you get to a vt (virtual terminal) ??  ctl & alt & F3 ?? or ssh into the
> stuck machine ?? if so we can get some debug from the journal..

The output after I logged into the KDE desktop and entered the following command in the console.
Do you need any other information?

$ sudo journalctl -u sddm --since "18 hours ago"
Sep 08 17:46:17 heaven sddm[1233]: Auth: sddm-helper exited successfully
Sep 08 17:46:17 heaven sddm[1233]: Socket server stopping...
Sep 08 17:46:17 heaven sddm[1233]: Socket server stopped.
Sep 08 17:46:17 heaven sddm[1233]: Display server stopping...
Sep 08 17:46:17 heaven sddm[1233]: Display server stopped.
Sep 08 17:46:17 heaven sddm[1233]: Running display stop script  QList("/usr/share/sddm/scripts/Xstop")
Sep 08 17:46:17 heaven sddm[1233]: Removing display SDDM::Display(0x6494832c7450) ...
Sep 08 17:46:17 heaven sddm[1233]: Adding new display...
Sep 08 17:46:17 heaven sddm[1233]: Loaded empty theme configuration
Sep 08 17:46:17 heaven sddm[1233]: Xauthority path: "/run/sddm/xauth_jHDsLb"
Sep 08 17:46:17 heaven sddm[1233]: Using VT 2
Sep 08 17:46:17 heaven sddm[1233]: Display server starting...
Sep 08 17:46:17 heaven sddm[1233]: Writing cookie to "/run/sddm/xauth_jHDsLb"
Sep 08 17:46:17 heaven sddm[1233]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_jHDsLb -noreset -displayfd 18
Sep 08 17:46:17 heaven sddm[1233]: Setting default cursor
Sep 08 17:46:17 heaven sddm[1233]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Sep 08 17:46:17 heaven sddm[1233]: Display server started.
Sep 08 17:46:17 heaven sddm[1233]: Socket server starting...
Sep 08 17:46:17 heaven sddm[1233]: Socket server started.
Sep 08 17:46:17 heaven sddm[1233]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
Sep 08 17:46:17 heaven sddm[1233]: Greeter starting...
Sep 08 17:46:17 heaven sddm-helper[3771]: [PAM] Starting...
Sep 08 17:46:17 heaven sddm-helper[3771]: [PAM] Authenticating...
Sep 08 17:46:17 heaven sddm-helper[3771]: [PAM] returning.
Sep 08 17:46:17 heaven sddm-helper[3771]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=115) by sddm(uid=0)
Sep 08 17:46:18 heaven sddm-helper[3771]: Writing cookie to "/tmp/xauth_oeovaK"
Sep 08 17:46:18 heaven sddm-helper[3771]: Starting X11 session: "" "/usr/bin/sddm-greeter-qt6 --socket /tmp/sddm-:0-aqoBwi --theme /usr/share/sddm/themes/breeze"
Sep 08 17:46:18 heaven sddm[1233]: Greeter session started successfully
Sep 08 17:46:18 heaven sddm[1233]: Message received from greeter: Connect
Sep 08 17:46:25 heaven sddm[1233]: Message received from greeter: Login
Sep 08 17:46:25 heaven sddm[1233]: Reading from "/usr/share/wayland-sessions/plasma.desktop"
Sep 08 17:46:25 heaven sddm[1233]: Session "/usr/share/wayland-sessions/plasma.desktop" selected, command: "/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland" for VT 1
Sep 08 17:46:25 heaven sddm-helper[3845]: [PAM] Starting...
Sep 08 17:46:25 heaven sddm-helper[3845]: [PAM] Authenticating...
Sep 08 17:46:25 heaven sddm-helper[3845]: [PAM] Preparing to converse...
Sep 08 17:46:25 heaven sddm-helper[3845]: [PAM] Conversation with 1 messages
Sep 08 17:46:25 heaven sddm-helper[3845]: pam_kwallet5(sddm:auth): pam_kwallet5: pam_sm_authenticate
Sep 08 17:46:25 heaven sddm-helper[3845]: [PAM] returning.
Sep 08 17:46:25 heaven sddm[1233]: Authentication for user  "michael"  successful
Sep 08 17:46:25 heaven sddm-helper[3845]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred
Sep 08 17:46:25 heaven sddm-helper[3845]: pam_unix(sddm:session): session opened for user michael(uid=1000) by michael(uid=0)
Sep 08 17:46:25 heaven sddm-helper[3845]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_open_session
Sep 08 17:46:25 heaven sddm[1233]: Auth: sddm-helper exited successfully
Sep 08 17:46:25 heaven sddm[1233]: Greeter stopped. SDDM::Auth::HELPER_SUCCESS
Sep 08 17:46:25 heaven sddm-helper[3845]: Starting Wayland user session: "/etc/sddm/wayland-session" "/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland"
Sep 08 17:46:25 heaven sddm[1233]: Session started true
Sep 08 18:15:11 heaven sddm[1233]: Auth: sddm-helper exited successfully
Sep 08 18:15:11 heaven sddm[1233]: Socket server stopping...
Sep 08 18:15:11 heaven sddm[1233]: Socket server stopped.
Sep 08 18:15:11 heaven sddm[1233]: Display server stopping...
Sep 08 18:15:11 heaven sddm[1233]: Display server stopped.
Sep 08 18:15:11 heaven sddm[1233]: Running display stop script  QList("/usr/share/sddm/scripts/Xstop")
Sep 08 18:15:11 heaven sddm[1233]: Removing display SDDM::Display(0x6494832be570) ...
Sep 08 18:15:11 heaven sddm[1233]: Adding new display...
Sep 08 18:15:11 heaven sddm[1233]: Loaded empty theme configuration
Sep 08 18:15:11 heaven sddm[1233]: Xauthority path: "/run/sddm/xauth_SoQKcG"
Sep 08 18:15:11 heaven sddm[1233]: Using VT 2
Sep 08 18:15:11 heaven sddm[1233]: Display server starting...
Sep 08 18:15:11 heaven sddm[1233]: Writing cookie to "/run/sddm/xauth_SoQKcG"
Sep 08 18:15:11 heaven sddm[1233]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_SoQKcG -noreset -displayfd 18
Sep 08 18:15:12 heaven sddm[1233]: Setting default cursor
Sep 08 18:15:12 heaven sddm[1233]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Sep 08 18:15:12 heaven sddm[1233]: Display server started.
Sep 08 18:15:12 heaven sddm[1233]: Socket server starting...
Sep 08 18:15:12 heaven sddm[1233]: Socket server started.
Sep 08 18:15:12 heaven sddm[1233]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
Sep 08 18:15:12 heaven sddm[1233]: Greeter starting...
Sep 08 18:15:12 heaven sddm-helper[5889]: [PAM] Starting...
Sep 08 18:15:12 heaven sddm-helper[5889]: [PAM] Authenticating...
Sep 08 18:15:12 heaven sddm-helper[5889]: [PAM] returning.
Sep 08 18:15:12 heaven sddm-helper[5889]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=115) by sddm(uid=0)
Sep 08 18:15:13 heaven sddm-helper[5889]: Writing cookie to "/tmp/xauth_EgPtxq"
Sep 08 18:15:13 heaven sddm-helper[5889]: Starting X11 session: "" "/usr/bin/sddm-greeter-qt6 --socket /tmp/sddm-:0-cjksWH --theme /usr/share/sddm/themes/breeze"
Sep 08 18:15:13 heaven sddm[1233]: Greeter session started successfully
Sep 08 18:15:13 heaven sddm[1233]: Message received from greeter: Connect
Sep 08 18:15:38 heaven sddm[1233]: Message received from greeter: Login
Sep 08 18:15:38 heaven sddm[1233]: Reading from "/usr/share/wayland-sessions/plasma.desktop"
Sep 08 18:15:38 heaven sddm[1233]: Session "/usr/share/wayland-sessions/plasma.desktop" selected, command: "/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland" for VT 1
Sep 08 18:15:38 heaven sddm-helper[5987]: [PAM] Starting...
Sep 08 18:15:38 heaven sddm-helper[5987]: [PAM] Authenticating...
Sep 08 18:15:38 heaven sddm-helper[5987]: [PAM] Preparing to converse...
Sep 08 18:15:38 heaven sddm-helper[5987]: [PAM] Conversation with 1 messages
Sep 08 18:15:38 heaven sddm-helper[5987]: pam_kwallet5(sddm:auth): pam_kwallet5: pam_sm_authenticate
Sep 08 18:15:38 heaven sddm-helper[5987]: [PAM] returning.
Sep 08 18:15:38 heaven sddm[1233]: Authentication for user  "michael"  successful
Sep 08 18:15:38 heaven sddm-helper[5987]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred
Sep 08 18:15:38 heaven sddm-helper[5987]: pam_unix(sddm:session): session opened for user michael(uid=1000) by michael(uid=0)
Sep 08 18:15:38 heaven sddm[1233]: Auth: sddm-helper exited successfully
Sep 08 18:15:38 heaven sddm[1233]: Greeter stopped. SDDM::Auth::HELPER_SUCCESS
Sep 08 18:15:38 heaven sddm-helper[5987]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_open_session
Sep 08 18:15:38 heaven sddm-helper[5987]: Starting Wayland user session: "/etc/sddm/wayland-session" "/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland"
Sep 08 18:15:39 heaven sddm[1233]: Session started true
Sep 08 18:21:54 heaven sddm[1233]: Auth: sddm-helper exited successfully
Sep 08 18:21:54 heaven sddm[1233]: Socket server stopping...
Sep 08 18:21:54 heaven sddm[1233]: Socket server stopped.
Sep 08 18:21:54 heaven sddm[1233]: Display server stopping...
Sep 08 18:21:54 heaven sddm[1233]: Display server stopped.
Sep 08 18:21:54 heaven sddm[1233]: Running display stop script  QList("/usr/share/sddm/scripts/Xstop")
Sep 08 18:21:54 heaven sddm[1233]: Removing display SDDM::Display(0x6494833144c0) ...
Sep 08 18:21:54 heaven sddm[1233]: Adding new display...
Sep 08 18:21:54 heaven sddm[1233]: Loaded empty theme configuration
Sep 08 18:21:54 heaven sddm[1233]: Xauthority path: "/run/sddm/xauth_FZMnEk"
Sep 08 18:21:54 heaven sddm[1233]: Using VT 2
Sep 08 18:21:54 heaven sddm[1233]: Display server starting...
Sep 08 18:21:54 heaven sddm[1233]: Writing cookie to "/run/sddm/xauth_FZMnEk"
Sep 08 18:21:54 heaven sddm[1233]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_FZMnEk -noreset -displayfd 18
Sep 08 18:21:55 heaven sddm[1233]: Setting default cursor
Sep 08 18:21:55 heaven sddm[1233]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Sep 08 18:21:55 heaven sddm[1233]: Display server started.
Sep 08 18:21:55 heaven sddm[1233]: Socket server starting...
Sep 08 18:21:55 heaven sddm[1233]: Socket server started.
Sep 08 18:21:55 heaven sddm[1233]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
Sep 08 18:21:55 heaven sddm[1233]: Greeter starting...
Sep 08 18:21:55 heaven sddm-helper[7182]: [PAM] Starting...
Sep 08 18:21:55 heaven sddm-helper[7182]: [PAM] Authenticating...
Sep 08 18:21:55 heaven sddm-helper[7182]: [PAM] returning.
Sep 08 18:21:55 heaven sddm-helper[7182]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=115) by sddm(uid=0)
Sep 08 18:21:55 heaven sddm-helper[7182]: Writing cookie to "/tmp/xauth_MqGxce"
Sep 08 18:21:55 heaven sddm-helper[7182]: Starting X11 session: "" "/usr/bin/sddm-greeter-qt6 --socket /tmp/sddm-:0-XBJvVs --theme /usr/share/sddm/themes/breeze"
Sep 08 18:21:55 heaven sddm[1233]: Greeter session started successfully
Sep 08 18:21:56 heaven sddm[1233]: Message received from greeter: Connect
Sep 08 18:22:46 heaven sddm[1233]: Message received from greeter: Login
Sep 08 18:22:46 heaven sddm[1233]: Reading from "/usr/share/wayland-sessions/plasma.desktop"
Sep 08 18:22:46 heaven sddm[1233]: Session "/usr/share/wayland-sessions/plasma.desktop" selected, command: "/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland" for VT 1
Sep 08 18:22:46 heaven sddm-helper[7274]: [PAM] Starting...
Sep 08 18:22:46 heaven sddm-helper[7274]: [PAM] Authenticating...
Sep 08 18:22:46 heaven sddm-helper[7274]: [PAM] Preparing to converse...
Sep 08 18:22:46 heaven sddm-helper[7274]: [PAM] Conversation with 1 messages
Sep 08 18:22:46 heaven sddm-helper[7274]: pam_kwallet5(sddm:auth): pam_kwallet5: pam_sm_authenticate
Sep 08 18:22:46 heaven sddm-helper[7274]: [PAM] returning.
Sep 08 18:22:46 heaven sddm[1233]: Authentication for user  "michael"  successful
Sep 08 18:22:46 heaven sddm-helper[7274]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred
Sep 08 18:22:46 heaven sddm-helper[7274]: pam_unix(sddm:session): session opened for user michael(uid=1000) by michael(uid=0)
Sep 08 18:22:46 heaven sddm[1233]: Auth: sddm-helper exited successfully
Sep 08 18:22:46 heaven sddm[1233]: Greeter stopped. SDDM::Auth::HELPER_SUCCESS
Sep 08 18:22:47 heaven sddm-helper[7274]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_open_session
Sep 08 18:22:47 heaven sddm-helper[7274]: Starting Wayland user session: "/etc/sddm/wayland-session" "/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland"
Sep 08 18:22:47 heaven sddm[1233]: Session started true
Sep 08 19:26:26 heaven sddm[1233]: Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"
Sep 08 19:26:26 heaven sddm[1233]: Auth: sddm-helper (--socket /tmp/sddm-auth-ae5cef5e-de9d-4a3d-998f-7ac83ca046bc --id 7 --start /usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland --user michael) crashed (exit code 1)
Sep 08 19:26:26 heaven sddm[1233]: Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"
Sep 08 19:26:26 heaven sddm[1233]: Auth: sddm-helper exited with 1
Sep 08 19:26:26 heaven systemd[1]: Stopping sddm.service - Simple Desktop Display Manager...
Sep 08 19:26:26 heaven sddm[1233]: Signal received: SIGTERM
Sep 08 19:26:26 heaven sddm[1233]: Socket server stopping...
Sep 08 19:26:26 heaven sddm[1233]: Socket server stopped.
Sep 08 19:26:26 heaven sddm[1233]: Display server stopping...
Sep 08 19:26:26 heaven sddm[1233]: Display server stopped.
Sep 08 19:26:26 heaven sddm[1233]: Running display stop script  QList("/usr/share/sddm/scripts/Xstop")
Sep 08 19:26:26 heaven systemd[1]: sddm.service: Deactivated successfully.
Sep 08 19:26:26 heaven systemd[1]: Stopped sddm.service - Simple Desktop Display Manager.
Sep 08 19:26:26 heaven systemd[1]: sddm.service: Consumed 3.222s CPU time.
-- Boot aa9f3cbe52f0413bbc9d3c2f355c26f7 --
Sep 09 11:19:27 heaven systemd[1]: Started sddm.service - Simple Desktop Display Manager.
Sep 09 11:19:27 heaven sddm[1296]: Initializing...
Sep 09 11:19:27 heaven sddm[1296]: Starting...
Sep 09 11:19:27 heaven sddm[1296]: Logind interface found
Sep 09 11:19:27 heaven sddm[1296]: Adding new display...
Sep 09 11:19:27 heaven sddm[1296]: Loaded empty theme configuration
Sep 09 11:19:27 heaven sddm[1296]: Xauthority path: "/run/sddm/xauth_cASZOs"
Sep 09 11:19:27 heaven sddm[1296]: Using VT 2
Sep 09 11:19:27 heaven sddm[1296]: Display server starting...
Sep 09 11:19:27 heaven sddm[1296]: Writing cookie to "/run/sddm/xauth_cASZOs"
Sep 09 11:19:27 heaven sddm[1296]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_cASZOs -noreset -displayfd 16
Sep 09 11:19:28 heaven sddm[1296]: Setting default cursor
Sep 09 11:19:28 heaven sddm[1296]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Sep 09 11:19:28 heaven sddm[1296]: Display server started.
Sep 09 11:19:28 heaven sddm[1296]: Socket server starting...
Sep 09 11:19:28 heaven sddm[1296]: Socket server started.
Sep 09 11:19:28 heaven sddm[1296]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
Sep 09 11:19:28 heaven sddm[1296]: Greeter starting...
Sep 09 11:19:28 heaven sddm-helper[1311]: [PAM] Starting...
Sep 09 11:19:28 heaven sddm-helper[1311]: [PAM] Authenticating...
Sep 09 11:19:28 heaven sddm-helper[1311]: [PAM] returning.
Sep 09 11:19:28 heaven sddm-helper[1311]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=115) by sddm(uid=0)
Sep 09 11:19:29 heaven sddm-helper[1311]: Writing cookie to "/tmp/xauth_TadVEh"
Sep 09 11:19:29 heaven sddm-helper[1311]: Starting X11 session: "" "/usr/bin/sddm-greeter-qt6 --socket /tmp/sddm-:0-JIITXY --theme /usr/share/sddm/themes/breeze"
Sep 09 11:19:29 heaven sddm[1296]: Greeter session started successfully
Sep 09 11:19:29 heaven sddm[1296]: Message received from greeter: Connect
Sep 09 11:19:45 heaven sddm[1296]: Message received from greeter: Login
Sep 09 11:19:45 heaven sddm[1296]: Reading from "/usr/share/wayland-sessions/plasma.desktop"
Sep 09 11:19:45 heaven sddm[1296]: Session "/usr/share/wayland-sessions/plasma.desktop" selected, command: "/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland" for VT 1
Sep 09 11:19:45 heaven sddm-helper[1784]: [PAM] Starting...
Sep 09 11:19:45 heaven sddm-helper[1784]: [PAM] Authenticating...
Sep 09 11:19:45 heaven sddm-helper[1784]: [PAM] Preparing to converse...
Sep 09 11:19:45 heaven sddm-helper[1784]: [PAM] Conversation with 1 messages
Sep 09 11:19:45 heaven sddm-helper[1784]: pam_kwallet5(sddm:auth): pam_kwallet5: pam_sm_authenticate
Sep 09 11:19:45 heaven sddm-helper[1784]: [PAM] returning.
Sep 09 11:19:45 heaven sddm[1296]: Authentication for user  "michael"  successful
Sep 09 11:19:45 heaven sddm-helper[1784]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred
Sep 09 11:19:45 heaven sddm-helper[1784]: pam_unix(sddm:session): session opened for user michael(uid=1000) by michael(uid=0)
Sep 09 11:19:45 heaven sddm[1296]: Auth: sddm-helper exited successfully
Sep 09 11:19:45 heaven sddm[1296]: Greeter stopped. SDDM::Auth::HELPER_SUCCESS
Sep 09 11:19:45 heaven sddm-helper[1784]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_open_session
Sep 09 11:19:45 heaven sddm-helper[1784]: Starting Wayland user session: "/etc/sddm/wayland-session" "/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland"
Sep 09 11:19:45 heaven sddm[1296]: Session started true
Comment 5 Sanmay 2025-09-09 09:45:54 UTC
Link to relevant post on KDE Discuss https://discuss.kde.org/t/serious-login-problem/39543
Comment 6 Carlos De Maine 2025-09-10 01:29:36 UTC
is it a plasma-wayland or plasma-x11 session you are trying to login to??
Comment 7 bluelupo 2025-09-10 09:23:54 UTC
Wayland is standard
Comment 8 Carlos De Maine 2025-09-20 09:59:05 UTC
reporter has resolved the kde discuss page he also made about this as being a user .bashrc issue - https://discuss.kde.org/t/serious-login-problem/39543

closing here as well
Comment 9 bluelupo 2025-09-25 07:18:00 UTC
I found the solution to my login problem. The problem was caused by .bash_profile.

I had set up an ssh systemd service for a user there.

Unfortunately, the following lines blocked the KDE start. As soon as I removed these two lines, everything worked smoothly.

# User systemd Service ~/.config/systemd/user/ssh-agent.service
export SSH_AUTH_SOCK=“$XDG_RUNTIME_DIR/ssh-agent.socket”

I then moved the line to .bashrc, where it no longer interferes with the start of KDE.