ubuntu 14.04 hangs showing login screen when using nouveau

[Redmar]

Using ubuntu 14.04 with kernel 3.13.0-55-generic and the nouveau drivers hangs on the lightdm screen. I cannot enter password or move mouse. I also cant switch to text mode using ctrl +alt +f1, nor reboot with REISUB.

* Using kernel 3.13.0-54-generic works, I can login and use the system even when using the nouveau driver
* Using kernel 3.13.0-55-generic with nvidia-331-updates also works.

Proposed solution:
Use the nvidia-311-updates driver instead of the open source nouveau driver.

Please let me know if you need any additional information.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-55.94-generic 3.13.11-ckt20
Uname: Linux 3.13.0-55-generic i686
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86 Kernel Module 331.113 Mon Dec 1 20:14:01 PST 2014
 GCC version: gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04)
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.11
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Sun Jun 21 15:32:35 2015
DistUpgraded: 2014-04-28 14:15:07,900 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 NVIDIA Corporation GK107 [GeForce GT 640] [10de:0fc1] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:8a92]
InstallationDate: Installed on 2013-05-24 (757 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
MachineType: Gigabyte Technology Co., Ltd. GA-880GM-UD2H
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=nl_NL.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-55-generic root=UUID=e68b16d5-dc00-4b2f-88d8-1535fc9ed05c ro quiet splash
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: Upgraded to trusty on 2014-04-28 (419 days ago)
dmi.bios.date: 10/11/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F8
dmi.board.name: GA-880GM-UD2H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF8:bd10/11/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-880GM-UD2H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-880GM-UD2H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-880GM-UD2H
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1
version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.4
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sun Jun 21 15:21:17 2015
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Power Button KEYBOARD, id 7
 input Dell Dell USB Entry Keyboard KEYBOARD, id 8
 input PixArt USB Optical Mouse MOUSE, id 9
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.15.1-0ubuntu2.7

[penalvch (penalvch)]

Redmar, thank you for reporting this and helping make Ubuntu better. Any change using the Vivid enablement stack as outlined in https://wiki.ubuntu.com/Kernel/LTSEnablementStack ?

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]