I'm running Ubuntu Gnome 16.04 on a Thinkpad T440p. On upgrading to 4.4.0-43 and rebooting the system didn't seem to recognize my Wifi or sound hardware: there was no Wifi icon or ability to connect to a network, and the only output on the sound menu was "Dummy Output." Rebooting into 4.4.0-42 solved the issue.
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ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: matt 3400 F.... pulseaudio
/dev/snd/controlC1: matt 3400 F.... pulseaudio
CurrentDesktop: GNOME
DistroRelease: Ubuntu 16.04
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=29856bc8-3313-4425-95eb-a0afbc112423
InstallationDate: Installed on 2015-08-23 (417 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: LENOVO 20ANCTO1WW
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-42-generic.efi.signed root=UUID=18bf0a8f-3ce6-4c05-aff3-96f8da1e9ce5 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-42.62-generic 4.4.21
RelatedPackageVersions:
linux-restricted-modules-4.4.0-42-generic N/A
linux-backports-modules-4.4.0-42-generic N/A
linux-firmware 1.157.4
Tags: xenial
Uname: Linux 4.4.0-42-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-07-24 (81 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 08/18/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: GLET84WW (2.38 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20ANCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: 0B98405 STD
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGLET84WW(2.38):bd08/18/2016:svnLENOVO:pn20ANCTO1WW:pvrThinkPadT440p:rvnLENOVO:rn20ANCTO1WW:rvr0B98405STD:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20ANCTO1WW
dmi.product.version: ThinkPad T440p
dmi.sys.vendor: LENOVO
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1633267
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.