This issue has sat incomplete for more than 60 days now. I'm going to close it as invalid. Please feel free re-open if this is still an issue for you. Thank you.
** Changed in: alsa-driver (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1330064 Title: Dell XPS 13 screeching sound when backlight is on and no speaker sound Status in ALSA driver: Unknown Status in alsa-driver package in Ubuntu: Invalid Bug description: By turning the keyboard backlight on the sound is present and by turning the keyboard backlight off the sound goes away. It happens consistently. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: steven 2551 F.... pulseaudio steven 15528 F.... pulseaudio /dev/snd/controlC0: steven 2551 F.... pulseaudio steven 15528 F.... pulseaudio CurrentDesktop: Unity Date: Sat Jun 14 09:17:51 2014 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-precise-amd64-20130203-1 EcryptfsInUse: Yes InstallationDate: Installed on 2014-06-04 (9 days ago) InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20130203-13:50 PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Speaker, Internal Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: None of the above Title: [XPS13 9333, Realtek ALC668, Speaker, Internal] Playback problem UpgradeStatus: Upgraded to trusty on 2014-06-10 (3 days ago) dmi.bios.date: 03/19/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 0D13CR dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA04:bd03/19/2014:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0D13CR:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: XPS13 9333 dmi.sys.vendor: Dell Inc. mtime.conffile..etc.modprobe.d.alsa.base.conf: 2014-06-04T10:15:02.975991 To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1330064/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp