SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** The SDDM Theme is not applied / does not work. SDDM is using the fallback theme. Apparently sddm-greeter is missing. It doesn't use sddm-greeter-qt6. STEPS TO REPRODUCE 1. select a theme 2. enter password to confirm 3. reboot system OBSERVED RESULT Fallback Theme is being used EXPECTED RESULT The selected theme should be used SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: KDE Neon 6.0 x86_64 (available in About System) KDE Plasma Version: 6.0.0 KDE Frameworks Version: Qt Version: 6 ADDITIONAL INFORMATION querying Journalctl yielded: journalctl --boot=0 --unit=sddm --no-pager Feb 29 16:47:18 tl044cn-spectre systemd[1]: Started Simple Desktop Display Manager. Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Initializing... Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Starting... Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Logind interface found Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Adding new display... Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Loaded empty theme configuration Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Xauthority path: "/run/sddm/xauth_rVUfGc" Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Using VT 2 Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Display server starting... Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Writing cookie to "/run/sddm/xauth_rVUfGc" Feb 29 16:47:18 tl044cn-spectre sddm[1522]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_rVUfGc -noreset -displayfd 16 Feb 29 16:47:20 tl044cn-spectre sddm[1522]: Setting default cursor Feb 29 16:47:20 tl044cn-spectre sddm[1522]: Running display setup script "/usr/share/sddm/scripts/Xsetup" Feb 29 16:47:20 tl044cn-spectre sddm[1522]: Display server started. Feb 29 16:47:20 tl044cn-spectre sddm[1522]: Socket server starting... Feb 29 16:47:20 tl044cn-spectre sddm[1522]: Socket server started. Feb 29 16:47:20 tl044cn-spectre sddm[1522]: Loading theme configuration from "/usr/share/sddm/themes/Swish-0.2/theme.conf" Feb 29 16:47:20 tl044cn-spectre sddm[1522]: The theme at "/usr/share/sddm/themes/Swish-0.2" requires missing "/usr/bin/sddm-greeter" . Using fallback theme. Feb 29 16:47:20 tl044cn-spectre sddm[1522]: Loaded empty theme configuration Feb 29 16:47:20 tl044cn-spectre sddm[1522]: Greeter starting... Feb 29 16:47:20 tl044cn-spectre sddm-helper[1629]: [PAM] Starting... Feb 29 16:47:20 tl044cn-spectre sddm-helper[1629]: [PAM] Authenticating... Feb 29 16:47:20 tl044cn-spectre sddm-helper[1629]: [PAM] returning. Feb 29 16:47:20 tl044cn-spectre sddm-helper[1629]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=118) by (uid=0) Feb 29 16:47:21 tl044cn-spectre sddm-helper[1629]: Writing cookie to "/tmp/xauth_oYmZIi" Feb 29 16:47:21 tl044cn-spectre sddm-helper[1629]: Starting X11 session: "" "/usr/bin/sddm-greeter-qt6 --socket /tmp/sddm-:0-ZXuLLh" Feb 29 16:47:21 tl044cn-spectre sddm[1522]: Greeter session started successfully Feb 29 16:47:21 tl044cn-spectre sddm[1522]: Message received from greeter: Connect Feb 29 16:47:27 tl044cn-spectre sddm[1522]: Message received from greeter: Login Feb 29 16:47:27 tl044cn-spectre sddm[1522]: Reading from "/usr/share/wayland-sessions/plasma.desktop" Feb 29 16:47:27 tl044cn-spectre sddm[1522]: 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 Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: [PAM] Starting... Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: [PAM] Authenticating... Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: [PAM] Preparing to converse... Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: [PAM] Conversation with 1 messages Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: pam_kwallet5(sddm:auth): pam_kwallet5: pam_sm_authenticate Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: [PAM] returning. Feb 29 16:47:27 tl044cn-spectre sddm[1522]: Authentication for user "tl044cn" successful Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: pam_unix(sddm:session): session opened for user tl044cn(uid=1000) by (uid=0) Feb 29 16:47:27 tl044cn-spectre sddm[1522]: Auth: sddm-helper exited successfully Feb 29 16:47:27 tl044cn-spectre sddm[1522]: Greeter stopped. SDDM::Auth::HELPER_SUCCESS Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_open_session Feb 29 16:47:27 tl044cn-spectre sddm-helper[1953]: 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"
3rd party qt5 sddm themes need to be updated by the upstream authors (or someone else) to be qt6 ssdm compatible
And what about when it happens with Breeze theme?
(In reply to Julien Delquié from comment #2) > And what about when it happens with Breeze theme? With corresponding logs, it’s better: mars 19 08:47:15 pasokon.maison sddm[2581]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf" mars 19 08:47:15 pasokon.maison sddm[2581]: The theme at "/usr/share/sddm/themes/breeze" requires missing "/usr/bin/sddm-greeter-qt6" . Using fallback theme.
that's puzzling .. /usr/bin/sddm-greeter-qt6 is definitely in the package. - https://build.neon.kde.org/job/jammy_release_3rdparty_sddm_bin_amd64/lastSuccessfulBuild/artifact/result/sddm_0.21.0-0xneon+22.04+jammy+release+build35_amd64.deb.info.txt/*view*/ what version of sddm is installed??
Replicated on the following system: Gentoo Kernel 6.8.7 KDE Plasma 6.0.4 KDE Frameworks 6.1.0 QT Vesion 6.7.0 SDDM 0.21 SDDM-KCM 6.0.4 Wayland 1.22.0 SDDM found to be using the fallback greeter on first startup. Actions taken: System settings -> SDDM -> Select "Breeze" -> Apply -> Successfully confirm root password -> Apply Plasma Settings -> Successfully confirm root password SDDM still found to be using its unthemed greeter. Further details to follow.
.... /etc/sddm.conf is ... [X11] DisplayCommand=/etc/sddm/scripts/Xsetup ServerArguments=-dpi 0 [Autologin] Relogin=false Session= User= [General] HaltCommand= Numlock=on RebootCommand= [Theme] Current=breeze CursorSize=18 CursorTheme=breeze_cursors Font=Noto Sans,8,-1,5,50,0,0,0,0,0 [Users] MaximumUid=60000 MinimumUid=1000 ... /etc/sddm.conf.d/kde_settings.conf reads... [Autologin] Relogin=false Session= User= [General] HaltCommand= Numlock=on RebootCommand= [Theme] Current=breeze CursorSize=18 CursorTheme=breeze_cursors Font=Noto Sans,8,-1,5,50,0,0,0,0,0 [Users] MaximumUid=60000 MinimumUid=1000 [X11] ServerArguments=-dpi 0 .... /etc/sddm.conf.d/01gentoo.conf is... [General] # Remove qtvirtualkeyboard as InputMethod default InputMethod= ... /etc/share/sddm/themes/breeze is populated with expected files (Main.qml, etc).
Output of journalctl --boot=0 --unit=sddm --no-pager: Apr 23 08:08:24 integrity systemd[1]: Started Simple Desktop Display Manager. Apr 23 08:08:24 integrity sddm[874]: Initializing... Apr 23 08:08:24 integrity sddm[874]: Starting... Apr 23 08:08:24 integrity sddm[874]: Logind interface found Apr 23 08:08:24 integrity sddm[874]: Adding new display... Apr 23 08:08:24 integrity sddm[874]: Loaded empty theme configuration Apr 23 08:08:24 integrity sddm[874]: Xauthority path: "/run/sddm/xauth_CjdCPd" Apr 23 08:08:24 integrity sddm[874]: Using VT 2 Apr 23 08:08:24 integrity sddm[874]: Display server starting... Apr 23 08:08:24 integrity sddm[874]: Writing cookie to "/run/sddm/xauth_CjdCPd" Apr 23 08:08:24 integrity sddm[874]: Running: /usr/bin/X -dpi 0 -background none -seat seat0 vt2 -auth /run/sddm/xauth_CjdCPd -noreset -displayfd 16 Apr 23 08:08:25 integrity sddm[874]: Setting default cursor Apr 23 08:08:25 integrity sddm[874]: Running display setup script "/etc/sddm/scripts/Xsetup" Apr 23 08:08:25 integrity sddm[874]: Display server started. Apr 23 08:08:25 integrity sddm[874]: Socket server starting... Apr 23 08:08:25 integrity sddm[874]: Socket server started. Apr 23 08:08:25 integrity sddm[874]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf" Apr 23 08:08:25 integrity sddm[874]: The theme at "/usr/share/sddm/themes/breeze" requires missing "/usr/bin/sddm-greeter-qt6" . Using fallback theme. Apr 23 08:08:25 integrity sddm[874]: Loaded empty theme configuration Apr 23 08:08:25 integrity sddm[874]: Greeter starting... Apr 23 08:08:25 integrity sddm-helper[888]: [PAM] Starting... Apr 23 08:08:25 integrity sddm-helper[888]: [PAM] Authenticating... Apr 23 08:08:25 integrity sddm-helper[888]: [PAM] returning. Apr 23 08:08:25 integrity sddm-helper[888]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=219) by (uid=0) Apr 23 08:08:25 integrity sddm-helper[888]: Writing cookie to "/tmp/xauth_aQadfC" Apr 23 08:08:25 integrity sddm-helper[888]: Starting X11 session: "" "/usr/bin/sddm-greeter --socket /tmp/sddm-:0-GgTrzW" Apr 23 08:08:25 integrity sddm[874]: Greeter session started successfully Apr 23 08:08:25 integrity sddm[874]: Message received from greeter: Connect Apr 23 08:08:30 integrity sddm[874]: Message received from greeter: Login Apr 23 08:08:30 integrity sddm[874]: Reading from "/usr/share/wayland-sessions/plasma.desktop" Apr 23 08:08:30 integrity sddm[874]: Session "/usr/share/wayland-sessions/plasma.desktop" selected, command: "/usr/lib64/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland" for VT 1 Apr 23 08:08:30 integrity sddm-helper[915]: [PAM] Starting... Apr 23 08:08:30 integrity sddm-helper[915]: [PAM] Authenticating... Apr 23 08:08:30 integrity sddm-helper[915]: [PAM] Preparing to converse... Apr 23 08:08:30 integrity sddm-helper[915]: [PAM] Conversation with 1 messages Apr 23 08:08:30 integrity sddm-helper[915]: gkr-pam: unable to locate daemon control file Apr 23 08:08:30 integrity sddm-helper[915]: [PAM] returning. Apr 23 08:08:30 integrity sddm-helper[915]: gkr-pam: stashed password to try later in open session Apr 23 08:08:30 integrity sddm-helper[915]: pam_kwallet5(sddm:auth): pam_kwallet5: pam_sm_authenticate Apr 23 08:08:30 integrity sddm[874]: Authentication for user "matthew" successful Apr 23 08:08:30 integrity sddm-helper[915]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred Apr 23 08:08:30 integrity sddm-helper[915]: pam_unix(sddm:session): session opened for user matthew(uid=1000) by matthew(uid=0) Apr 23 08:08:30 integrity sddm[874]: Auth: sddm-helper exited successfully Apr 23 08:08:30 integrity sddm[874]: Greeter stopped. SDDM::Auth::HELPER_SUCCESS Apr 23 08:08:30 integrity sddm-helper[915]: gkr-pam: gnome-keyring-daemon started properly and unlocked keyring Apr 23 08:08:30 integrity sddm-helper[915]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_open_session Apr 23 08:08:30 integrity sddm-helper[915]: Starting Wayland user session: "/usr/share/sddm/scripts/wayland-session" "/usr/lib64/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland" Apr 23 08:08:30 integrity sddm[874]: Session started true
Notably, there is no /usr/bin/sddm-greeter-qt6 on my system. ls /usr/bin | grep sddm: sddm sddm-greeter sddmthemeinstaller
(In reply to Matthew from comment #8) > Notably, there is no /usr/bin/sddm-greeter-qt6 on my system. > That's a packaging issue, please report to your distribution
(In reply to Antonio Rojas from comment #9) > (In reply to Matthew from comment #8) > > Notably, there is no /usr/bin/sddm-greeter-qt6 on my system. > > > > That's a packaging issue, please report to your distribution Will do. Is that folder something that belongs to SDDM or KDE-Plasma?
(In reply to Matthew from comment #10) > (In reply to Antonio Rojas from comment #9) > > (In reply to Matthew from comment #8) > > > Notably, there is no /usr/bin/sddm-greeter-qt6 on my system. > > > > > > > That's a packaging issue, please report to your distribution > > Will do. Is that folder something that belongs to SDDM or KDE-Plasma? SDDM (not a folder, but an executable)
Just for the record, at this point it is not a packaging error but a packaging decision as I cannot personally get the Qt6 greeter to work on my system, and this is documented with a pending bug downstream.