Errors in Upgrading

[Zin Thaw Tun]

Errors were encountered while processing:
 linux-image-extra-4.4.0-7-generic
 linux-image-generic
 linux-generic
 linux-signed-image-generic
 linux-signed-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-7.22-generic 4.4.2
Uname: Linux 4.4.0-7-generic x86_64
NonfreeKernelModules: wl
.tmp.unity.support.test.0:

ApportVersion: 2.20-0ubuntu3
Architecture: amd64
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 Feb 27 00:31:35 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 6.30.223.248+bdcom, 4.4.0-4-generic, x86_64: installed
 bcmwl, 6.30.223.248+bdcom, 4.4.0-6-generic, x86_64: installed
 bcmwl, 6.30.223.248+bdcom, 4.4.0-7-generic, x86_64: installed
 virtualbox, 5.0.14, 4.4.0-6-generic, x86_64: installed
 virtualbox, 5.0.14, 4.4.0-7-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Broadwell-U Integrated Graphics [103c:2296]
   Subsystem: Hewlett-Packard Company GM108M [GeForce 840M] [103c:2296]
InstallationDate: Installed on 2016-02-12 (14 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151209)
MachineType: Hewlett-Packard HP Pavilion 15 Notebook PC
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-7-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/02/2015
dmi.bios.vendor: Insyde
dmi.bios.version: F.36
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 2296
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 78.21
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.36:bd02/02/2015:svnHewlett-Packard:pnHPPavilion15NotebookPC:pvr097A120000005F10000600080:rvnHewlett-Packard:rn2296:rvr78.21:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion 15 Notebook PC
dmi.product.version: 097A120000005F10000600080
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12.2+16.04.20160209-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.1.2-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.1.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.3-2ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160218-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1
xserver.bootTime: Fri Feb 26 17:05:30 2016
xserver.configfile: default
xserver.errors: systemd-logind: failed to get session: PID 1759 does not belong to any known session
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 1130
 vendor LGD
xserver.version: 2:1.17.3-2ubuntu4