I noticed when i restarted my laptop (HP 630 after installing the latest stable linux kernel (linux-image-13.110.13-generic:amd64 13.11.0-13.20), there was no sound, i could not connect to the internet via either cable or wireless and the graphics was slow. On further inspection i found out no network manager displayed "network devices available" and there was a dummy output in sound settings.
After searching the internet i came across this link ---> http://askubuntu.com/questions/294016/no-sound-in-ubuntu-13-04-only-dummy-output-device-listed
After following the instruction and choosing an earlier version of kernel (3.11.0-12-generic), all the issues were resolved. I have ubuntu 13.10 installed.
Below is the comment that helped. Hope this is helpful in some way to deal with the issue with the latest kernel.
"I also had it - Does sound work before reboot after one update? If yes it is probably the same.
It's bug related to kernel 3.8.0-18.
Run uname -r to check your version of Kernel. If it is 3.8.0-18-generic - try next steps
Reboot and in GRUB select Advanced options
Chose Ubuntu with Kernel ... (Any before -18)
Also you can subscribe this bug at Launchpad, I hope they will fix it soon"
---
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: akoshodi 2460 F.... pulseaudio
/dev/snd/controlC0: akoshodi 2460 F.... pulseaudio
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=81c678ce-b670-40a5-a31f-adab1f716c43
InstallationDate: Installed on 2013-10-25 (17 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
Lsusb:
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 04f2:b2f4 Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Hewlett-Packard HP 655 Notebook PC
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=12b5056c-0b3a-4453-b2ef-a8a558fad324 ro quiet splash acpi_backlight=vendor vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
RelatedPackageVersions:
linux-restricted-modules-3.11.0-12-generic N/A
linux-backports-modules-3.11.0-12-generic N/A
linux-firmware 1.116
Tags: saucy
Uname: Linux 3.11.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 04/27/2012
dmi.bios.vendor: Insyde
dmi.bios.version: F.02
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1885
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 66.11
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.02:bd04/27/2012:svnHewlett-Packard:pnHP655NotebookPC:pvr0793100000205210002620100:rvnHewlett-Packard:rn1885:rvr66.11:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP 655 Notebook PC
dmi.product.version: 0793100000205210002620100
dmi.sys.vendor: Hewlett-Packard
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1250363
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.