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Bug#318015: marked as done (xserver-xorg: dies in preinst due to debconf bug)

Your message dated Sat, 30 Jul 2005 16:41:20 -0400
with message-id <20050730204120.GE8481@squee.verizon.net>
and subject line Closing. Not an Xorg bug.
has caused the attached Bug report to be marked as done.

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Date: Tue, 12 Jul 2005 23:28:25 +0200
From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
To: submit@bugs.debian.org
Subject: xserver-xorg: dies in preinst due to debconf bug
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Package: xserver-xorg
Version: 6.8.2.dfsg.1-1
Severity: serious

After first doing "aptitude install xserver-common" and then "aptitude
install xserver-xorg" (just "aptitude dist-upgrade" wanted to remove
~300 packages, including GNOME :-) ), I got:

   xserver-xorg config warning: migrating xserver-xfree86 templates to xserver-xorg.
   Can't call method "choices" on an undefined value at
   /usr/share/perl5/Debconf/Question.pm line 85, <GEN13> line 118.

   Received signal.  Aborting xserver-xorg package config script.

Then, it installed some other packages, and tried again, giving
essentially the same error:

   xserver-xorg config warning: migrating xserver-xfree86 templates to xserver-xorg.
   Can't call method "choices" on an undefined value at
   /usr/share/perl5/Debconf/Question.pm line 85, <GEN1> line 115.

Some manual debugging with DEBCONF_DEBUG=developer revealed:

debconf (developer): <-- SET xserver-xorg/autodetect_monitor true
debconf (developer): --> 0 value set
debconf (developer): <-- FSET xserver-xorg/autodetect_monitor seen true
debconf (developer): --> 0 true
debconf (developer): <-- METAGET xserver-xfree86/config/display/modes choices
Can't call method "choices" on an undefined value at
/usr/share/perl5/Debconf/Question.pm line 85, <GEN1> line 115.

Now, this does indeed exist in debconf:

  Name: xserver-xfree86/config/display/modes
  Template: xserver-xfree86/config/display/modes
  Value: 800x600, 640x480
  Owners: xserver-xfree86

However, there are no choices there, actually... and I can't find
anything in the templates, either. I guess the problem is:

baby:~/xorg> grep -c config/display/modes /var/cache/debconf/templates.dat

So, the template in question is kind of half-there, since it has a _value_
but not a template. Now, debconf shouldn't _die_ on this, and that is
probably a bug (I guess I'll kick Joey when I see him later today :-) ),
for in the meantime this breaks X.org installation in these cases...

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.12-3-686
Locale: LANG=nb_NO.UTF-8, LC_CTYPE=nb_NO.UTF-8 (charmap=UTF-8)

-- no debconf information

Homepage: http://www.sesse.net/

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Date: Sat, 30 Jul 2005 16:41:20 -0400
From: David Nusinow <david_nusinow@verizon.net>
Subject: Closing. Not an Xorg bug.
To: 318015-done@bugs.debian.org
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This isn't a bug in xorg but rather in debconf and there appears to be no
way to work around it from within the xorg scripts. The debconf maintainer
says that this problem in debconf is known but is unreproducible, and can
be fixed by running /usr/share/debconf/fix_db.pl. Since this is totally out
of the XSF's hands, I'm closing this bug.

 - David Nusinow

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