Bug#766241: gnome: dist-upgrade on 20-Oct lost gnome pixbufs and several tweak settings reset

[Michael Biebl]

On Tue, 21 Oct 2014 18:48:14 +0100 prioryc <jimc at priorycomputers.com> wrote:
> Source: gnome
> Version: 3.14.1
> Severity: critical
> Justification: breaks the whole system
> 
> Dear Maintainer,
> 
>    * What led up to the situation?
> Performed dist-upgrade on 20-Oct
> 
>    * What was the outcome of this action?
> When system rebooted on 21-Oct unable to login except under basic terminal
>    * What outcome did you expect instead?
> To be able to use the machine
> 
> Ran "sudo gdk-pixbuf-query-loaders --update-cache" to fix
> Then tweak-tool and set the basic settings required which had been reset.
> 

The gnome meta package looks like the wrong package this bug was filed
against.

This sounds like the gdk-pixbuf trigger was not run successfully.
There have been some bugs in dpkg recently (which are now fixed) which
made some triggers not be run due to dependency cycles [1].

prioryc, have you seen such a message like this during the upgrade?

Processing triggers for man-db (2.7.0.2-2) ...
dpkg: cycle found while processing triggers:
 chain of packages whose triggers are or may be responsible:
  libgdk-pixbuf2.0-0:i386 -> doc-base
 packages' pending triggers which are or may be unresolvable:
  doc-base: /usr/share/doc-base
  menu: /usr/share/menu
  libgdk-pixbuf2.0-0:i386:
/usr/lib/i386-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders
  hal: /usr/share/hal/fdi
dpkg: error processing package doc-base (--unpack):
 triggers looping, abandoned



Those bug reports started to pop up around 15t Oct and it was fixed by a
dpkg upload on 20 Oct.



[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=765434

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Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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