[Bug 1423161] [NEW] No try/install dialogue displayed

[Elfy]

Public bug reported:

Running 32vivid Xubuntu in VBox running in vivid.

Boots to a blank desktop - should boot to our Try/Install Dialogue.

Only apparent in vbox, running the same image from usb on hardware and
it works.

Reported this via vt1 and apport-cli

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubiquity 2.21.10
ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
Uname: Linux 3.18.0-13-generic i686
ApportVersion: 2.16.1-0ubuntu2
Architecture: i386
CasperVersion: 1.351
Date: Wed Feb 18 12:40:14 2015
InstallCmdLine: file=/cdrom/preseed/xubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Xubuntu 15.04 "Vivid Vervet" - Alpha i386 (20150218)
ProcEnviron:
 SHELL=/bin/bash
 TERM=linux
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 XDG_RUNTIME_DIR=<set>
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: apport-bug i386 ubiquity-2.21.10 vivid xubuntu

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https://bugs.launchpad.net/bugs/1423161

Title:
  No try/install dialogue displayed

Status in ubiquity package in Ubuntu:
  New

Bug description:
  Running 32vivid Xubuntu in VBox running in vivid.

  Boots to a blank desktop - should boot to our Try/Install Dialogue.

  Only apparent in vbox, running the same image from usb on hardware and
  it works.

  Reported this via vt1 and apport-cli

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: ubiquity 2.21.10
  ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
  Uname: Linux 3.18.0-13-generic i686
  ApportVersion: 2.16.1-0ubuntu2
  Architecture: i386
  CasperVersion: 1.351
  Date: Wed Feb 18 12:40:14 2015
  InstallCmdLine: file=/cdrom/preseed/xubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  LiveMediaBuild: Xubuntu 15.04 "Vivid Vervet" - Alpha i386 (20150218)
  ProcEnviron:
   SHELL=/bin/bash
   TERM=linux
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   XDG_RUNTIME_DIR=<set>
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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