This looks like a multiarch mismatched files bug, but as the below testing shows, the changelogs are identical on all five arches. apport reported that the file was changed on-disk, so the only assumption I can make here is that there was either corruption at install time, or manual mangling of the file locally between installation of one arch and another. Closing the bug as invalid.
(base)adconrad@cthulhu:~/test$ find . -name changelog\* | xargs md5sum ddf1c7a3e970f0d91c5c3f35bff8c0de ./armhf/usr/share/doc/libasound2/changelog.Debian.gz ddf1c7a3e970f0d91c5c3f35bff8c0de ./powerpc/usr/share/doc/libasound2/changelog.Debian.gz ddf1c7a3e970f0d91c5c3f35bff8c0de ./i386/usr/share/doc/libasound2/changelog.Debian.gz ddf1c7a3e970f0d91c5c3f35bff8c0de ./amd64/usr/share/doc/libasound2/changelog.Debian.gz ddf1c7a3e970f0d91c5c3f35bff8c0de ./armel/usr/share/doc/libasound2/changelog.Debian.gz (base)adconrad@cthulhu:~/test$ find . -name changelog\* | xargs gunzip (base)adconrad@cthulhu:~/test$ find . -name changelog\* | xargs md5sum 38c803e65b051e37583b08b3d23c8618 ./armhf/usr/share/doc/libasound2/changelog.Debian 38c803e65b051e37583b08b3d23c8618 ./powerpc/usr/share/doc/libasound2/changelog.Debian 38c803e65b051e37583b08b3d23c8618 ./i386/usr/share/doc/libasound2/changelog.Debian 38c803e65b051e37583b08b3d23c8618 ./amd64/usr/share/doc/libasound2/changelog.Debian 38c803e65b051e37583b08b3d23c8618 ./armel/usr/share/doc/libasound2/changelog.Debian ** Changed in: alsa-lib (Ubuntu) Status: New => Invalid ** Tags added: bot-stop-nagging -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1172933 Title: package libasound2 1.0.25-1ubuntu10.2 [modified: usr/share/alsa/cards /USB-Audio.conf usr/share/doc/libasound2/changelog.Debian.gz] failed to install/upgrade: './usr/share/doc/libasound2/changelog.Debian.gz' is different from the same file on the system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1172933/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs