package nvidia-304-updates 304.131-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 30

[jeremy]

trying to get my third display to be reconized. it worked fine in the previous version of Ubuntu.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: nvidia-304-updates 304.131-0ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13
Uname: Linux 4.4.0-28-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
BootLog:

CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Sat Sep 3 18:48:08 2016
DistUpgraded: 2016-07-05 09:02:55,443 DEBUG icon theme changed, re-reading
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
 nvidia-304-updates, 304.131, 4.4.0-28-generic, x86_64: installed
 vboxhost, 5.0.24, 4.2.0-41-generic, x86_64: installed
 vboxhost, 5.0.24, 4.4.0-28-generic, x86_64: installed
ErrorMessage: subprocess installed post-installation script returned error exit status 30
GraphicsCard:
 Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [1028:0581]
 NVIDIA Corporation GT218 [GeForce 210] [10de:0a65] (rev a2) (prog-if 00 [VGA controller])
   Subsystem: Device [196e:082e]
InstallationDate: Installed on 2016-01-29 (219 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
LightdmDisplayLog:
 Cannot do multiple crtcs without X server dirty tracking 2 interface
 randr: failed to set shadow slave pixmap
MachineType: Dell Inc. Inspiron 660
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-28-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: nvidia-graphics-drivers-304-updates
Title: package nvidia-304-updates 304.131-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 30
UpgradeStatus: Upgraded to xenial on 2016-07-05 (60 days ago)
dmi.bios.date: 11/23/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0XR1GT
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd11/23/2012:svnDellInc.:pnInspiron660:pvr:rvnDellInc.:rn0XR1GT:rvrA00:cvnDellInc.:ct3:cvr:
dmi.product.name: Inspiron 660
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12.2+16.04.20160526-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Fri Sep 2 13:15:05 2016
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.3-1ubuntu2.2