Bug#800158: sddm: "failsafe" session fails

[Ralf Jung <post@ralfj.de>]

Package: sddm
Version: 0.12.0-4
Severity: normal

Dear Maintainer,

SDDM offers a "failsafe" session. Selecting that session and logging in makes SDDM freeze.
(So, rather ironically, "failsafe" fails.)

The log says:

  Invalid session "/usr/share/xsessions/failsafe.desktop"

And indeed no such file exists, nor could I find a file with that name anywhere with apt-file.
I can't tell why SDDM even offers that session.

Kind regards,
Ralf

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (100, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.1.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages sddm depends on:
ii  adduser                         3.113+nmu3
ii  debconf [debconf-2.0]           1.5.57
ii  libc6                           2.19-20
ii  libgcc1                         1:5.2.1-17
ii  libpam0g                        1.1.8-3.1
ii  libqt5core5a                    5.5.0+dfsg-7
ii  libqt5dbus5                     5.5.0+dfsg-7
ii  libqt5gui5                      5.5.0+dfsg-7
ii  libqt5network5                  5.5.0+dfsg-7
ii  libqt5qml5                      5.5.0-2
ii  libqt5quick5                    5.5.0-2
ii  libstdc++6                      5.2.1-17
ii  libsystemd0                     226-3
ii  libxcb-xkb1                     1.10-3+b1
ii  libxcb1                         1.10-3+b1
ii  qml-module-qtquick2             5.5.0-2
ii  sddm-theme-breeze [sddm-theme]  4:5.4.1-1

sddm recommends no packages.

Versions of packages sddm suggests:
pn  libpam-kwallet5  <none>

-- debconf information:
  sddm/daemon_name: /usr/bin/sddm
* shared/default-x-display-manager: sddm