[HDA-Intel - HDA Intel PCH, playback] Pulseaudio fails to detect card

[Rodrigo]

I was using Audio Production software and suddenly the sound just disappeared. One of the softwares I was using (PureData) send me a message about an issue with Alsa output and now I don't have sound.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: pulseaudio 1:4.0-0ubuntu11.1
ProcVersionSignature: Ubuntu 3.13.0-49.83-lowlatency 3.13.11-ckt17
Uname: Linux 3.13.0-49-lowlatency x86_64
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: muffinhead 7153 F.... jackd
 /dev/snd/pcmC0D0c: muffinhead 7153 F...m jackd
 /dev/snd/pcmC0D0p: muffinhead 7153 F...m jackd
CurrentDesktop: XFCE
Date: Mon Apr 27 11:03:41 2015
InstallationDate: Installed on 2013-11-16 (526 days ago)
InstallationMedia: Ubuntu-Studio 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
SourcePackage: pulseaudio
Symptom: audio
Symptom_Card: HDA-Intel - HDA Intel PCH
Title: [HDA-Intel - HDA Intel PCH, playback] Pulseaudio fails to detect card
UpgradeStatus: Upgraded to trusty on 2014-05-22 (339 days ago)
dmi.bios.date: 01/24/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 230
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: K45A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr230:bd01/24/2013:svnASUSTeKCOMPUTERINC.:pnK45A:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK45A:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: K45A
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.