Looking a bit further found a tip regarding include a grub line "i915.disable_power_well=0" to kernel. it worked! now the sound through hdmi is playing at right pitch.
Thanks -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1372740 Title: [Dell Latitude E6440] Audio playback too fast Status in “linux” package in Ubuntu: Confirmed Bug description: I have a notebook Dell Latitude E6440 and the audio playback is too fast. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-35-generic 3.13.0-35.62 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.14.1-0ubuntu3.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: alex 2331 F.... pulseaudio /dev/snd/controlC1: alex 2331 F.... pulseaudio /dev/snd/pcmC1D0p: alex 2331 F...m pulseaudio Date: Tue Sep 23 00:16:48 2014 HibernationDevice: RESUME=UUID=d7135da0-e04d-4f43-89c6-7972d4ebb648 InstallationDate: Installed on 2014-08-11 (42 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Dell Inc. Latitude E6440 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic root=UUID=fa4db96b-9801-4ebf-9ca1-e23cf6a53965 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-35-generic N/A linux-backports-modules-3.13.0-35-generic N/A linux-firmware 1.127.6 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/03/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A02 dmi.board.name: 007KGN dmi.board.vendor: Dell Inc. dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA02:bd09/03/2013:svnDellInc.:pnLatitudeE6440:pvr01:rvnDellInc.:rn007KGN:rvr:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6440 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1372740/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
