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[Erick Brunzell <lbsolost@xxxxxxxxx>]

It turns out that both 14.04 and 14.04.1 are affected by this bug. I had
to look in the installer log to see what version I'd begun with (and
have been running on that box as my stable OS) = Ubuntu 14.04 LTS
"Trusty Tahr" - Alpha i386 (20140129). So I was undoubtedly able to
install Trusty at that point but hadn't noticed a problem because I was
already using the third-party nvidia driver after that date.

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https://bugs.launchpad.net/bugs/1412602

Title:
  No live DE in Vivid using nouveau w/GeForce 7025/nForce 630a

Status in Accelerated Xorg driver for nVidia cards:
  Unknown
Status in linux package in Ubuntu:
  Confirmed
Status in xserver-xorg-video-nouveau package in Ubuntu:
  New
Status in linux source package in Trusty:
  Confirmed
Status in xserver-xorg-video-nouveau source package in Trusty:
  New
Status in linux source package in Utopic:
  Confirmed
Status in xserver-xorg-video-nouveau source package in Utopic:
  New
Status in linux source package in Vivid:
  Confirmed
Status in xserver-xorg-video-nouveau source package in Vivid:
  New

Bug description:
  I've been testing the Ubuntu GNOME Vivid daily images in anticipation
  of Alpha 2 and I noticed that with this specific hardware I get no
  graphics at all other than a blank screen (see attached photo):

  AMD Sempron Processor LE-1250 @ 2.2 GHz
  nVidia C61 [GeForce 7025 / nForce 630a] (rev a2)
  nVidia MCP61 High Definition Audio (rev a2)
  nVidia MCP61 Ethernet (rev a2)
  2GB DDR2 RAM

  In fact I never even get as far as the screen offering to Try or
  Install, but I can enter the Advanced Boot Options screen and select
  either Try or Install from there, but with both options I still get
  the same blank screen.

  Further testing reveals the same results with Ubuntu and Ubuntu GNOME
  but I found that both the Xubuntu and Lubuntu images will boot
  properly on this box so I installed Lubuntu and then installed the
  ubuntu-desktop, ubuntu-gnome-desktop, and gnome-session-flashback
  meta-packages just to try some things.

  After doing so I found that the Unity, GNOME Shell, Gnome Classic, and
  Flashback w/Compiz sessions produce broken graphics just as the Ubuntu
  GNOME and Ubuntu live images do. So basically Compiz and Mutter both
  fail to display any usable UI. OTOH both the Lubuntu and Flashback
  w/Metacity sessions work just fine.

  I next opened the Additional drivers UI and chose nvidia-304.125
  (current) and all DE's perform quite well with the proprietary drivers
  so I deduced that nouveau might be the culprit.

  The last known working Ubuntu and Ubuntu GNOME live images are
  14.04.1. I hadn't tried Utopic on this box yet but it's also a fail.
  I'll try the proposed 14.04.2 images ASAP (probably after Vivid Alpha
  2 is released).

  But I see no point in trying to fix this for Utopic (or even 14.04.2
  if it's effected) because of the 9 month life-cycle for Utopic and the
  continued availability of the 14.04.1 images. In fact I'd be cool with
  this not being fixed until 16.04 as long as it's documented so people
  know what versions will and will not work.

  I'm probably forgetting something but that's all I can think of ATM.
  Sorry in advance if I did this totally wrong.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  ProcVersionSignature: Ubuntu 3.18.0-9.10-generic 3.18.2
  Uname: Linux 3.18.0-9-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.15.1-0ubuntu2
  Architecture: i386
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME-Flashback:Unity
  Date: Mon Jan 19 17:41:32 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   NVIDIA Corporation C61 [GeForce 7025 / nForce 630a] [10de:03d6] (rev a2) (prog-if 00 [VGA controller])
     Subsystem: Biostar Microtech Int'l Corp Device [1565:1405]
  InstallationDate: Installed on 2015-01-19 (0 days ago)
  InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Alpha i386 (20150118)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 002: ID 046d:c52e Logitech, Inc. 
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: BIOSTAR Group N68SB-M2S
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.18.0-9-generic root=UUID=acf0fd65-0d6d-4da6-9532-2adc558bc0a7 ro quiet splash init=/lib/systemd/systemd
  SourcePackage: xserver-xorg-video-nouveau
  UdevLog:
   
  UpgradeStatus: No upgrade log present (probably fresh install)
  XorgLogOld:
   
  dmi.bios.date: 06/24/2010
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: 6.00 PG
  dmi.board.name: N68SB-M2S
  dmi.board.vendor: BIOSTAR Group
  dmi.chassis.type: 3
  dmi.chassis.vendor: BIOSTAR Group
  dmi.chassis.version: N68SB-M2S
  dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd06/24/2010:svnBIOSTARGroup:pnN68SB-M2S:pvr:rvnBIOSTARGroup:rnN68SB-M2S:rvr:cvnBIOSTARGroup:ct3:cvrN68SB-M2S:
  dmi.product.name: N68SB-M2S
  dmi.sys.vendor: BIOSTAR Group
  version.compiz: compiz 1:0.9.12.0+15.04.20141219-0ubuntu1
  version.libdrm2: libdrm2 2.4.58-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.2.901-1ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Mon Jan 19 17:37:11 2015
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input        Logitech USB Receiver KEYBOARD, id 8
   input        Logitech USB Receiver KEYBOARD, id 9
  xserver.errors:
   Failed to load module "nvidia" (module does not exist, 0)
   Failed to load module "nvidia" (module does not exist, 0)
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.16.2.901-1ubuntu3
  xserver.video_driver: nouveau

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