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Groups > linux.debian.devel.testing > #1332

Bug#993495: upgrade-reports: autologin to kde via sddm fails after buster->bullseye

Cross-posted to 2 groups.

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Package: upgrade-reports
Severity: normal
X-Debbugs-Cc: boris+debian@bretonium.net

My previous release is: buster
I am upgrading to: bullseye
Archive date: before Thu Sep  2 02:22:57 UTC 2021
Upgrade date: Thu Sep 1 ~22:00 UTC+1 2021
uname -a before upgrade: missing
uname -a after upgrade: Linux stationary-pc 5.10.0-8-amd64 #1 SMP Debian 5.10.46-4 (2021-08-03) x86_64 GNU/Linux
Method: apt full-upgrade via internet

Contents of /etc/apt/sources.list: only default `main` repos, no
non-Debian packages, all packages upgraded successfully.

I use sddm as my desktop manager and launch kde plasma with it. I also
use autologin into my single non-root user, that was created during
installation of buster.

After the upgrade autologin failed and sddm and/or plasma crashed. There was
either a black screen or only a cursor on a black background. Logs are
in the end of the report.

The problem was in autologin and in the contents of /etc/sddm.conf. The
contents was probably something like this (it got rewritten after
reconfiguration via gui and original content lost):

[Autologin]
User=breton
Session=plasma

After i commented out these lines, i was able to log again. After
re-configuring autologin via kde gui things were still working.

I will try to reproduce it again in a VM.

Logs:

Sep 02 01:33:25 stationary-pc systemd[1]: Started Simple Desktop Display Manager.
Sep 02 01:33:25 stationary-pc sddm[885]: Initializing...
Sep 02 01:33:25 stationary-pc sddm[885]: Starting...
Sep 02 01:33:25 stationary-pc sddm[885]: Logind interface found
Sep 02 01:33:25 stationary-pc sddm[885]: Adding new display on vt 7 ...
Sep 02 01:33:25 stationary-pc sddm[885]: Loading theme configuration from ""
Sep 02 01:33:25 stationary-pc sddm[885]: Display server starting...
Sep 02 01:33:25 stationary-pc sddm[885]: Adding cookie to "/var/run/sddm/{18e1b067-6f34-44ab-b601-234f264b7fe2}"
Sep 02 01:33:25 stationary-pc sddm[885]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{18e1b067-6f34-44ab-b601-234f264b7fe2} -background none -noreset -displ>
Sep 02 01:33:26 stationary-pc sddm[885]: Setting default cursor
Sep 02 01:33:26 stationary-pc sddm[885]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Sep 02 01:33:26 stationary-pc sddm[885]: Display server started.
Sep 02 01:33:26 stationary-pc sddm[885]: Reading from "/usr/share/xsessions/plasma.desktop"
Sep 02 01:33:26 stationary-pc sddm[885]: Reading from "/usr/share/xsessions/plasma.desktop"
Sep 02 01:33:26 stationary-pc sddm[885]: Session "/usr/share/xsessions/plasma.desktop" selected, command: "/usr/bin/startplasma-x11"
Sep 02 01:33:26 stationary-pc sddm-helper[920]: [PAM] Starting...
Sep 02 01:33:26 stationary-pc sddm-helper[920]: [PAM] Authenticating...
Sep 02 01:33:26 stationary-pc sddm-helper[920]: [PAM] returning.
Sep 02 01:33:26 stationary-pc sddm[885]: Authenticated successfully
Sep 02 01:33:26 stationary-pc sddm-helper[920]: pam_unix(sddm-autologin:session): session opened for user breton(uid=1000) by (uid=0)
Sep 02 01:33:26 stationary-pc sddm-helper[920]: Starting: "/etc/sddm/wayland-session /usr/bin/startplasma-x11"
Sep 02 01:33:26 stationary-pc sddm[885]: Session started
Sep 02 01:33:27 stationary-pc sddm-helper[920]: [PAM] Closing session
Sep 02 01:33:27 stationary-pc sddm-helper[920]: pam_unix(sddm-autologin:session): session closed for user breton
Sep 02 01:33:27 stationary-pc sddm-helper[920]: [PAM] Ended.
Sep 02 01:33:27 stationary-pc sddm[885]: Auth: sddm-helper exited with 1

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Bug#993495: upgrade-reports: autologin to kde via sddm fails after buster->bullseye Boris Bobrov <boris+debian@bretonium.net> - 2021-09-02 10:00 +0200
  Bug#993495:  Boris Bobrov <boris+debian@bretonium.net> - 2021-09-02 16:10 +0200
  Bug#993495: The same here Florent DENAT <florent.denat@grandeperrure.fr> - 2021-12-30 02:40 +0100

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