package libxdmcp6 1:1.1.2-1.1 failed to install/upgrade: dpkg-deb --control subprocess returned error exit status 2

[akhil]

NA

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: libxdmcp6 1:1.1.2-1.1
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
NonfreeKernelModules: wl
.tmp.unity_support_test.0:

ApportVersion: 2.20.9-0ubuntu7.3
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Sun Sep 9 17:42:59 2018
Dependencies:
 gcc-8-base 8-20180414-1ubuntu2
 libc6 2.27-3ubuntu1
 libgcc1 1:8-20180414-1ubuntu2
DistUpgraded: 2018-09-09 19:28:03,076 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process "./xorg_fix_proprietary.py" (No such file or directory) (8))
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 6.30.223.271+bdcom, 4.15.0-30-generic, x86_64: installed
 bcmwl, 6.30.223.271+bdcom, 4.15.0-33-generic, x86_64: installed
ErrorMessage: dpkg-deb --control subprocess returned error exit status 2
GraphicsCard:
 Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo HD Graphics 5500 [17aa:390c]
InstallationDate: Installed on 2017-12-13 (270 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
MachineType: LENOVO 80E5
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-33-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3ubuntu1
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.3ubuntu0.1
SourcePackage: libxdmcp
Title: package libxdmcp6 1:1.1.2-1.1 failed to install/upgrade: dpkg-deb --control subprocess returned error exit status 2
UpgradeStatus: Upgraded to bionic on 2018-09-09 (0 days ago)
dmi.bios.date: 06/20/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: B0CN40WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Lenovo G50-80
dmi.board.vendor: LENOVO
dmi.board.version: 31900059WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo G50-80
dmi.modalias: dmi:bvnLENOVO:bvrB0CN40WW:bd06/20/2014:svnLENOVO:pn80E5:pvrLenovoG50-80:rvnLENOVO:rnLenovoG50-80:rvr31900059WIN:cvnLENOVO:ct10:cvrLenovoG50-80:
dmi.product.family: IDEAPAD
dmi.product.name: 80E5
dmi.product.version: Lenovo G50-80
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Sun Sep 9 20:23:28 2018
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.19.6-1ubuntu4
xserver.video_driver: modeset

[Kai Kasurinen (kai-kasurinen)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that there was an error on your system when trying to install a particular package. Please execute the following command, as it will clear your package cache, in a terminal:

sudo apt-get clean

Then try performing the update again. This will likely resolve your issue, but the failure could be caused by filesystem or memory corruption. So please also run a fsck on your filesystem(s) and a memory test. Thanks in advance!