matthew@Hal9000:~$ sudo apt-get -f install
[sudo] password for matthew:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  calligra-l10n-engb cdparanoia k3b k3b-data k3b-i18n kde-l10n-engb
  kde-l10n-zhcn kdevelop-l10n kdevelop-php-docs-l10n kdevelop-php-l10n
  language-pack-kde-en libboost-date-time1.46.1 libboost-python1.46.1
  libboost-thread1.46.1 libflac++6 libk3b6 libkcddb4
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libdrm-intel1:i386 libdrm-nouveau2:i386 libdrm-radeon1:i386
The following NEW packages will be installed:
  libdrm-intel1:i386 libdrm-nouveau2:i386 libdrm-radeon1:i386
0 upgraded, 3 newly installed, 0 to remove and 125 not upgraded.
1 not fully installed or removed.
Need to get 0 B/103 kB of archives.
After this operation, 392 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
(Reading database ... 369600 files and directories currently installed.)
Unpacking libdrm-intel1:i386 (from .../libdrm-intel1_2.4.39-0ubuntu1_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/libdrm-intel1_2.4.39-0ubuntu1_i386.deb (--unpack):
 trying to overwrite shared '/usr/share/doc/libdrm-intel1/changelog.Debian.gz', which is different from other instances of package libdrm-intel1:i386
Unpacking libdrm-nouveau2:i386 (from .../libdrm-nouveau2_2.4.39-0ubuntu1_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/libdrm-nouveau2_2.4.39-0ubuntu1_i386.deb (--unpack):
 trying to overwrite shared '/usr/share/doc/libdrm-nouveau2/changelog.Debian.gz', which is different from other instances of package libdrm-nouveau2:i386
Unpacking libdrm-radeon1:i386 (from .../libdrm-radeon1_2.4.39-0ubuntu1_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/libdrm-radeon1_2.4.39-0ubuntu1_i386.deb (--unpack):
 trying to overwrite shared '/usr/share/doc/libdrm-radeon1/changelog.Debian.gz', which is different from other instances of package libdrm-radeon1:i386
Errors were encountered while processing:
 /var/cache/apt/archives/libdrm-intel1_2.4.39-0ubuntu1_i386.deb
 /var/cache/apt/archives/libdrm-nouveau2_2.4.39-0ubuntu1_i386.deb
 /var/cache/apt/archives/libdrm-radeon1_2.4.39-0ubuntu1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)