Package: sddm Version: 0.18.0-1 Severity: important Concurrent X-Sessions can be started on other VTs (without sddm, just xinit) and you can switch between these without any problem.
When switching back to the sddm VT (number 7) sddm crashes and so the session is lost. This behaviour is 100% reproducible on various notbooks. (1) pam modification: the pam groups module now works fine with sddm (pam was fixed since stretch, sddm was not usable with stretch anyhow). (2) here the trivial xinitrc used with startx to do testing: #!/bin/sh . /etc/X11/Xsession if [ -x /usr/bin/startkde ] ; then startkde elif [ -x /usr/bin/twm ] ; then twm & xclock -g 130x130+900+10 & xterm -g 120x35+10+10 -sb fi (3) Kernal taint: is virtual box, but the mentioned tests were run on a real machine. --- Thanks for your attention and your Debian engagement Jürgen -- System Information: Debian Release: 10.0 APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-5-amd64 (SMP w/4 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages sddm depends on: ii adduser 3.118 ii debconf [debconf-2.0] 1.5.71 ii libc6 2.28-10 ii libgcc1 1:8.3.0-6 ii libpam0g 1.3.1-5 ii libqt5core5a 5.11.3+dfsg1-1 ii libqt5dbus5 5.11.3+dfsg1-1 ii libqt5gui5 5.11.3+dfsg1-1 ii libqt5network5 5.11.3+dfsg1-1 ii libqt5qml5 5.11.3-4 ii libqt5quick5 5.11.3-4 ii libstdc++6 8.3.0-6 ii libsystemd0 241-3 ii libxcb-xkb1 1.13.1-2 ii libxcb1 1.13.1-2 ii qml-module-qtquick2 5.11.3-4 ii x11-common 1:7.7+19 ii xnest [xserver] 2:1.20.3-1 ii xserver-xorg [xserver] 1:7.7+19 Versions of packages sddm recommends: ii haveged 1.9.1-7 ii libpam-systemd 241-3 ii sddm-theme-breeze [sddm-theme] 4:5.14.5.1-1 ii sddm-theme-debian-breeze [sddm-theme] 4:5.14.5.1-1 ii sddm-theme-debian-elarun [sddm-theme] 0.18.0-1 ii sddm-theme-debian-maui [sddm-theme] 0.18.0-1 Versions of packages sddm suggests: pn libpam-kwallet5 <none> pn qtvirtualkeyboard-plugin <none> -- Configuration Files: /etc/pam.d/sddm changed: auth requisite pam_nologin.so auth required pam_succeed_if.so user != root quiet_success @include common-auth auth optional pam_group.so -auth optional pam_gnome_keyring.so -auth optional pam_kwallet5.so @include common-account session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close session optional pam_keyinit.so force revoke session required pam_limits.so session required pam_loginuid.so @include common-session session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open -session optional pam_gnome_keyring.so auto_start -session optional pam_kwallet5.so auto_start @include common-password session required pam_env.so session required pam_env.so envfile=/etc/default/locale user_readenv=1 -- no debconf information