[Bug 933991] Re: xset: unable to open display "" all over upgrade terminal

[MarcRandolph]

*** This bug is a duplicate of bug 883618 ***
    https://bugs.launchpad.net/bugs/883618

** This bug has been marked a duplicate of bug 883618
   Natty Console upgrade useless.. XSet warnings all over the screen

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https://bugs.launchpad.net/bugs/933991

Title:
  xset: unable to open display "" all over upgrade terminal

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  I was performing an upgrade from lucid to precise remotely on SSH
  using this command:

  # do-release-upgrade -m desktop -d

  All over the terminal There are errors:

  xprop: unable to open display ''
  xset: unable to open display ''

  I'm unable to answer debconf questions because of these coming up all
  over.

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