package fglrx-updates (not installed) failed to:14. install/upgrade: trying to overwrite '/etc/acpi/fglrx-powermode.sh', which is also in package fglrx-core 2201-0ubuntu2

[Qu Bit]

1
$ lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04

2
$ apt-cache policy fglrx-updates
fglrx-updates:
  Installed: (none)
  Candidate: 2:13.350.1-0ubuntu2
  Version table:
     2:14.201-0ubuntu2 0
        500 http://at.archive.ubuntu.com/ubuntu/ utopic/restricted amd64 Packages
        100 /var/lib/dpkg/status
     2:13.350.1-0ubuntu2 0
        990 http://at.archive.ubuntu.com/ubuntu/ trusty/restricted amd64 Packages

3
a working switch

4
the error

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: fglrx-updates (not installed)
ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
Uname: Linux 3.13.0-44-generic x86_64
NonfreeKernelModules: fglrx
.tmp.unity.support.test.0:

.tmp.unity.support.test.1:

ApportVersion: 2.14.1-0ubuntu3.6
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 Jan 10 18:56:12 2015
DistUpgraded: 2014-06-15 14:45:06,743 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus: fglrx-core, 14.201, 3.13.0-44-generic, x86_64: installed
DpkgTerminalLog:
 Preparing to unpack .../fglrx-updates_2%3a13.350.1-0ubuntu2_amd64.deb ...
 Unpacking fglrx-updates (2:13.350.1-0ubuntu2) ...
 dpkg: error processing archive /var/cache/apt/archives/fglrx-updates_2%3a13.350.1-0ubuntu2_amd64.deb (--unpack):
  trying to overwrite '/etc/acpi/fglrx-powermode.sh', which is also in package fglrx-core 2:14.201-0ubuntu2
 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
DuplicateSignature: package:fglrx-updates:(not installed):trying to overwrite '/etc/acpi/fglrx-powermode.sh', which is also in package fglrx-core 2:14.201-0ubuntu2
ErrorMessage: trying to overwrite '/etc/acpi/fglrx-powermode.sh', which is also in package fglrx-core 2:14.201-0ubuntu2
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Trinity [Radeon HD 7500G] [1002:990a] (prog-if 00 [VGA controller])
   Subsystem: Samsung Electronics Co Ltd Device [144d:c660]
 Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7550M/7570M/7650M] [1002:6841] (prog-if 00 [VGA controller])
   Subsystem: Samsung Electronics Co Ltd Device [144d:c661]
InstallationDate: Installed on 2012-10-05 (826 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 535U4C
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-44-generic root=UUID=42797f15-818e-49a6-8d1f-076354a793e7 ro quiet splash vt.handoff=7
SourcePackage: fglrx-installer-updates
Title: package fglrx-updates (not installed) failed to install/upgrade: trying to overwrite '/etc/acpi/fglrx-powermode.sh', which is also in package fglrx-core 2:14.201-0ubuntu2
UpgradeStatus: Upgraded to trusty on 2014-06-15 (209 days ago)
dmi.bios.date: 02/23/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P05RAF.N92.130223.LEO
dmi.board.asset.tag: No Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: SEC_SW_REVISION_1234567890ABCD
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05RAF.N92.130223.LEO:bd02/23/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn535U4C:pvrP05RAF:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
dmi.product.name: 535U4C
dmi.product.version: P05RAF
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.11.3+14.04.20141104-0ubuntu1
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1~ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.3
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.6
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 2:2.99.910-0ubuntu1.3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sat Jan 10 18:34:09 2015
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:
 AIGLX error: failed to open /usr/X11R6/lib64/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib64/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
 AIGLX error: failed to open /usr/lib64/dri/fglrx_dri.so, error[/usr/lib64/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
 AIGLX error: failed to open /usr/X11R6/lib/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.1-0ubuntu2.6
xserver.video_driver: fglrx

[Launchpad Janitor (janitor)]

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