14.04 update to 15.10 fails at stabilishing new software channels

[Lucas.biaggini]

Error persists even after manually removing all ppas and both at terminal or update-manager.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 4.4.0-38.57~14.04.1-generic 4.4.19
Uname: Linux 4.4.0-38-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Tue Sep 27 16:32:22 2016
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-trusty-amd64-osp1-20150720-0
InstallationDate: Installed on 2016-07-12 (77 days ago)
InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20150720-04:06
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2016-09-27 (0 days ago)
mtime.conffile..etc.update.manager.release.upgrades: 2016-09-27T15:41:50.015356

[Launchpad Janitor (janitor)]

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

[Clare (clare-averill)]

not sure this is my bug actually.

I have an audio problem (no sound at all, never had any sound from internal hardware, once had sound from headphones only). I also get a repeating crash report that relates to audio elements.

The Title of the (UnreportableReason that this is not an official Ubuntu package) is oem-audio-hda-daily-lts-xenial-dkms 0.201611160201~ubuntu14.04.1: oem-audio-hda-daily-lts-xenial kernel module failed to build

DistributionChannelDescriptor
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-trusty-amd64-osp1-20150720-0