Sound works after suspend mode only

Hi,

I have a strange problem with one (this) particular computer: After booting the builtin speaker does not work. But once the computer had been in standby (suspend) mode to save power, the sound works.

I know, that's still better than the opposite problem most people have, that sound works after booting but not after resume.

However, it still means the the resume procedure makes something right what the boot procedure doesn't. I could not figure out yet, in what detail they differ.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: pulseaudio 1:4.0-0ubuntu11
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: hadmut 3561 F.... panel-12-mixer
                      hadmut 3638 F.... pulseaudio
CurrentDesktop: XFCE
Date: Sun Dec 28 13:50:03 2014
InstallationDate: Installed on 2014-08-06 (143 days ago)
InstallationMedia: Ubuntu-Server 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.3)
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/12/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: H61TIW08.111
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H61H2-TI2
dmi.board.vendor: Medion
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Medion
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrH61TIW08.111:bd10/12/2012:svnMedion:pnG24:pvr1.0:rvnMedion:rnH61H2-TI2:rvr1.0:cvnMedion:ct3:cvr1.0:
dmi.product.name: G24
dmi.product.version: 1.0
dmi.sys.vendor: Medion