** Description changed:

+ [Impact]
+ Without this libpciaccess fix xserver-xorg-video-vesa will not function 
correctly in virtualbox or on Intel GPUs when vesa is forced (i915 not loaded 
in the kernel, as can happen on newer hardware without kernel support) when 
using the Quantal X backport stack that is in 12.04.2. 
+ 
+ This requires 3 commits from upstream libpciaccess git, all contained in 
0.13.1 that is in quantal, which is why the bug never manifested there.
+ 
http://cgit.freedesktop.org/xorg/lib/libpciaccess/commit/?id=f550c1347d3518874fe1c1d417a57322ee6b52db
+ 
http://cgit.freedesktop.org/xorg/lib/libpciaccess/commit/?id=b16336c0b389ace07f7418f5a021bfbc68fec2b6
 (which fixes the previous commit on ARM)
+ 
http://cgit.freedesktop.org/xorg/lib/libpciaccess/commit/?id=d2dc9f9daa45504f035b169aba94d0b154fd29f0
+ 
+ [Test Case]
+ Try to boot 12.04.2 in a virtualbox VM without guest extensions so vesa is 
used.
+ If working, X will start and the desktop will come up normally.
+ 
+ 
+ [Original Subject]
+ 
  Hello!
  
  I have tested Edubuntu amd64 (5d76226ca924f5c5b4e683c4ac177a6b *precise-
  dvd-amd64.iso 20130210), on VirtualBox.
  
  1) I have started the system.
  2) I have chosen the language.
  3) I have clicked on "Try Edubuntu ..."
  4) This system is started no graphics.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: xserver-xorg (not installed)
  ProcVersionSignature: Ubuntu 3.5.0-23.35~precise1-generic 3.5.7.2
  Uname: Linux 3.5.0-23-generic x86_64
  .tmp.unity.support.test.1:
-  
+ 
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  CasperVersion: 1.315.1
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  Date: Mon Feb 11 12:04:20 2013
  DistUpgraded: Fresh install
  DistroCodename: precise
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes,
  GraphicsCard: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter 
[80ee:beef] (prog-if 00 [VGA controller])
  LiveMediaBuild: Edubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 
(20130210)
  Lsusb:
-  Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet
-  Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet
+  Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: innotek GmbH VirtualBox
  MarkForUpload: True
  ProcEnviron:
-  TERM=linux
-  PATH=(custom, no user)
-  LANG=it_IT.UTF-8
-  SHELL=/bin/bash
+  TERM=linux
+  PATH=(custom, no user)
+  LANG=it_IT.UTF-8
+  SHELL=/bin/bash
  ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper 
initrd=/casper/initrd.lz quiet splash -- debian-installer/language=it 
keyboard-configuration/layoutcode?=it
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/01/2006
  dmi.bios.vendor: innotek GmbH
  dmi.bios.version: VirtualBox
  dmi.modalias: 
dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:
  dmi.product.name: VirtualBox
  dmi.product.version: 1.2
  dmi.sys.vendor: innotek GmbH
  version.compiz: compiz 1:0.9.7.12-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.39-0ubuntu0.1
  version.libgl1-mesa-dri: libgl1-mesa-dri N/A
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core N/A
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
  xserver.bootTime: Mon Feb 11 12:28:13 2013
  xserver.configfile: default
  xserver.devices:
-  input        Power Button         KEYBOARD, id 6
-  input        Sleep Button         KEYBOARD, id 7
-  input        VirtualBox USB Tablet TOUCHSCREEN, id 8
-  input        AT Translated Set 2 keyboard KEYBOARD, id 9
-  input        ImExPS/2 Generic Explorer Mouse MOUSE, id 10
+  input        Power Button         KEYBOARD, id 6
+  input        Sleep Button         KEYBOARD, id 7
+  input        VirtualBox USB Tablet TOUCHSCREEN, id 8
+  input        AT Translated Set 2 keyboard KEYBOARD, id 9
+  input        ImExPS/2 Generic Explorer Mouse MOUSE, id 10
  xserver.errors:
-  Failed to load module "vboxvideo" (module does not exist, 0)
-  Failed to load module "vboxvideo" (module does not exist, 0)
-  open /dev/dri/card0: No such file or directory
-  open /dev/dri/card0: No such file or directory
-  open /dev/fb0: No such file or directory
+  Failed to load module "vboxvideo" (module does not exist, 0)
+  Failed to load module "vboxvideo" (module does not exist, 0)
+  open /dev/dri/card0: No such file or directory
+  open /dev/dri/card0: No such file or directory
+  open /dev/fb0: No such file or directory
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
-  
+ 
  xserver.version: 2:1.13.2-0ubuntu1

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https://bugs.launchpad.net/bugs/1122072

Title:
  [Precise on VirtualBox] "Fatal server error: no screen found" in
  Xorg.0.log

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