[Bug 1566542] [NEW] Two sddm bugs with 16.04

[Dr. Uwe Meyer-Gruhl]

Public bug reported:

SDDM with 16.04 LTS introduces two new problems that did not exist with
15.10 or 14.04:

1. The option HideShells in /etc/sddm.conf does not work correctly. When
more than one shell is specified, the filter does not work and the
matching users are listed in the greeting screen notwithstanding.

2. The xauthority (or MIT-MAGIC-COOKIE) file is no longer at
/var/run/sddm/:0 but at an unpredictable location like
/var/run/sddm/{ca7d6d45-9b4d-4a92-997e-c9c11081dea1} which is build by
including a random UUID in the path. When trying to start x11vnc, for
example, that file cannot be found. With 15.10, one could start x11vnc
with '/usr/bin/x11vnc -auth /var/run/sddm/:0 -display :0 -rfbauth
/etc/vncpasswd -rfbport 5943 -reopen -forever', this is no longer
possible.

Especially the second bug is uncool with Ubuntu server for remote root
servers.

** Affects: sddm (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: sddm x11vnc xauth

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Title:
  Two sddm bugs with 16.04

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