package libxau6:i386 1:1.0.8-1 failed to install/upgrade: package libxau6:i386 is already installed and configured

[Asaf C-tone]

after I uninstalled alsa and changed Nvidia driver

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libxau6:i386 1:1.0.8-1
ProcVersionSignature: Ubuntu 4.4.0-164.192-generic 4.4.186
Uname: Linux 4.4.0-164-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 340.107 Thu May 24 21:54:01 PDT 2018
 GCC version: gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.11)
.tmp.unity_support_test.0:

ApportVersion: 2.20.1-0ubuntu2.19
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14.1
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
CrashReports:
 600:0:116:143774:2019-09-20 13:42:27.960055828 +0300:2019-09-20 13:42:28.960055828 +0300:/var/crash/libxau6:i386.0.crash
 600:0:116:143790:2019-09-20 13:42:28.912055431 +0300:2019-09-20 13:42:28.708053807 +0300:/var/crash/libsystemd0:i386.0.crash
 600:0:116:143784:2019-09-20 13:42:28.936055622 +0300:2019-09-20 13:42:28.912055431 +0300:/var/crash/libjson-c2:i386.0.crash
Date: Fri Sep 20 13:42:28 2019
Dependencies:
 gcc-6-base 6.0.1-0ubuntu1
 libc6 2.23-0ubuntu11
 libgcc1 1:6.0.1-0ubuntu1
 multiarch-support 2.23-0ubuntu11
DistUpgraded: 2019-09-17 09:02:24,602 DEBUG icon theme changed, re-reading
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
 bbswitch, 0.8, 4.4.0-146-generic, x86_64: installed
 bbswitch, 0.8, 4.4.0-148-generic, x86_64: installed
 bbswitch, 0.8, 4.4.0-161-generic, x86_64: installed
 bbswitch, 0.8, 4.4.0-164-generic, x86_64: installed
 nvidia-340, 340.107, 4.4.0-164-generic, x86_64: installed
DuplicateSignature:
 package:libxau6:i386:1:1.0.8-1
 Processing triggers for man-db (2.7.5-1) ...
 dpkg: error processing package libsystemd0:i386 (--configure):
  package libsystemd0:i386 is already installed and configured
ErrorMessage: package libxau6:i386 is already installed and configured
GraphicsCard:
 NVIDIA Corporation GF119 [GeForce GT 610] [10de:104a] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. GF119 [GeForce GT 610] [1043:8496]
InstallationDate: Installed on 2019-04-05 (167 days ago)
InstallationMedia: Ubuntu 14.04.6 LTS "Trusty Tahr" - Release amd64 (20190304.5)
MachineType: Gigabyte Technology Co., Ltd. EP45-UD3P
PackageArchitecture: i386
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-164-generic root=UUID=efaf1e2d-40ba-46e9-8363-ac5407093e75 ro quiet splash
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.6
 apt 1.2.32
SourcePackage: dpkg
Title: package libxau6:i386 1:1.0.8-1 failed to install/upgrade: package libxau6:i386 is already installed and configured
UpgradeStatus: Upgraded to xenial on 2019-09-17 (3 days ago)
dmi.bios.date: 02/24/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F8
dmi.board.name: EP45-UD3P
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:bd02/24/2009:svnGigabyteTechnologyCo.,Ltd.:pnEP45-UD3P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEP45-UD3P:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: EP45-UD3P
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.12.3+16.04.20180221-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.91-2~16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~16.04.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~16.04.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.8
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+git20160325-1ubuntu1.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Fri Sep 20 13:53:50 2019
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Power Button KEYBOARD, id 7
 input Logitech M185 MOUSE, id 8
 input AT Translated Set 2 keyboard KEYBOARD, id 9
 input Logitech M185 MOUSE, id 8
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.18.4-0ubuntu0.8

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.