Public bug reported:

Same bug was present in Ubuntu 12.04 + unity (+/- compiz) for same
machine, upgrade to 14.04 and switch to openbox did not help.  See
screenshot: gnome-terminal is cut in half.  Any attempt to move it
further right and it does not display anything further right than that
line.  Openbox dock is cut off in the same spot(though sometimes also
disappears entirely).  Some other applications(eg xterm) do display to
the right of that line.

01:00.0 VGA compatible controller: NVIDIA Corporation NV18GL [Quadro NVS
280 SD] (rev a2)

makerspace@accounting1:~$ lsmod | grep nouv
nouveau               969650  3 
mxm_wmi                12893  1 nouveau
wmi                    18673  2 mxm_wmi,nouveau
video                  18903  1 nouveau
i2c_algo_bit           13197  1 nouveau
ttm                    85079  1 nouveau
drm_kms_helper         48868  1 nouveau
drm                   244037  5 ttm,drm_kms_helper,nouveau

Linux accounting1 3.13.0-76-generic #120-Ubuntu SMP Mon Jan 18 15:58:41 UTC 
2016 i686 i686 i686 GNU/Linux
 
makerspace@accounting1:~$ apt-cache policy xserver-xorg-video-nouveau
xserver-xorg-video-nouveau:
  Installed: 1:1.0.10-1ubuntu2
  Candidate: 1:1.0.10-1ubuntu2
  Version table:
 *** 1:1.0.10-1ubuntu2 0
        500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main i386 Packages
        100 /var/lib/dpkg/status


makerspace@accounting1:~$ apt-cache policy xserver-xorg
xserver-xorg:
  Installed: 1:7.7+1ubuntu8.1
  Candidate: 1:7.7+1ubuntu8.1
  Version table:
 *** 1:7.7+1ubuntu8.1 0
        500 http://ca.archive.ubuntu.com/ubuntu/ trusty-updates/main i386 
Packages
        100 /var/lib/dpkg/status
     1:7.7+1ubuntu8 0
        500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main i386 Packages


openbox:
  Installed: 3.5.2-6
  Candidate: 3.5.2-6
 

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS" 

Programs that *do* display across both monitors with no problem:

* Gimp

*  PaleMoon

* xterm

* eog

Programs that consistently do *not*

* Openbox dock

* gnome-terminal

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-76.120-generic 3.13.11-ckt30
Uname: Linux 3.13.0-76-generic i686
.tmp.unity.support.test.1:
 
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: i386
CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus]
CompositorRunning: None
Date: Fri Jan 22 09:52:38 2016
DistUpgraded: 2016-01-19 16:27:00,780 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes
GraphicsCard:
 NVIDIA Corporation NV18GL [Quadro NVS 280 SD] [10de:018a] (rev a2) (prog-if 00 
[VGA controller])
   Subsystem: NVIDIA Corporation Device [10de:0168]
InstallationDate: Installed on 2016-01-16 (5 days ago)
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release i386 
(20130213)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 004: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
 Bus 002 Device 002: ID 04f2:0760 Chicony Electronics Co., Ltd Acer KU-0760 
Keyboard
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: IBM -[622122U]-
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-76-generic 
root=UUID=ee741c79-9174-4ce2-9423-8b7db58e0228 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: Upgraded to trusty on 2016-01-19 (2 days ago)
dmi.bios.date: 04/29/2003
dmi.bios.vendor: IBM
dmi.bios.version: -[OPE128A]-
dmi.board.name: MS-9121
dmi.board.vendor: IBM
dmi.board.version: 1.0
dmi.chassis.type: 7
dmi.chassis.vendor: IBM
dmi.modalias: 
dmi:bvnIBM:bvr-[OPE128A]-:bd04/29/2003:svnIBM:pn-[622122U]-:pvr1.0:rvnIBM:rnMS-9121:rvr1.0:cvnIBM:ct7:cvr:
dmi.product.name: -[622122U]-
dmi.product.version: 1.0
dmi.sys.vendor: IBM
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 10.1.3-0ubuntu0.5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.5
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: Fri Jan 22 09:39:12 2016
xserver.configfile: default
xserver.devices:
 input        Power Button         KEYBOARD, id 6
 input        Power Button         KEYBOARD, id 7
 input        Chicony USB Keyboard KEYBOARD, id 8
 input        Chicony USB Keyboard KEYBOARD, id 9
 input        PIXART USB OPTICAL MOUSE MOUSE, id 10
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: 2:1.15.1-0ubuntu2.7
xserver.video_driver: nouveau

** Affects: xserver-xorg-video-nouveau (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise trusty ubuntu

** Attachment added: "2016-01-22-100552_2880x900_scrot.png"
   
https://bugs.launchpad.net/bugs/1537124/+attachment/4554798/+files/2016-01-22-100552_2880x900_scrot.png

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-nouveau in Ubuntu.
https://bugs.launchpad.net/bugs/1537124

Title:
  dual monitor setup half second screen does not display some programs

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https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1537124/+subscriptions

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