Bug#865382: Stretch KDE live image is not stable

[Steve McIntyre <steve@einval.com>]

Package: debian-live
Severity: important

When tested on (some) real hardware, the 9.0.0 and 9.0.1 live images
containing the KDE desktop are unstable, exhibiting crashes.

There is a segmentation fault in kmanage - the first obvious symptom
will be a failure to automatically log in. A workaround is to switch
to VT1 and wait for the desktop to start there. This has been
reproduced on hardware (using Intel graphics?), but not when testing
in a virtual machine.

-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)