I was wondering about your last question myself. I can't be sure, but the last phrase of the commit note seems to say "Yes" - "so that the top speaker works as is."
-- 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/1505067 Title: [HP Spectre x360 - 13-4001nf] Audio broken, broadwell-U audio controller Status in linux package in Ubuntu: Triaged Bug description: On Ubuntu vivid (15.04), Audio driver on HP Spectre x360 doesn't work. WORKAROUND: GRUB can be reconfigured to use the sound card in legacy (HDA) mode by: 1) Editing /etc/default/grub 2) replacing GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" by GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor acpi_osi='!Windows 2013' acpi_osi='!Windows 2012'" 3) Rebooting TWO times ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-30-generic 3.19.0-30.34 ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6 Uname: Linux 3.19.0-30-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: yom 1908 F.... pulseaudio /dev/snd/controlC1: yom 1908 F.... pulseaudio CurrentDesktop: Unity Date: Mon Oct 12 10:49:27 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-07-17 (86 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) MachineType: Hewlett-Packard HP Spectre x360 Convertible 13 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic root=UUID=fabc8684-f690-4eeb-ad0a-ec14846f7de6 ro quiet splash acpi_backlight=vendor "acpi_osi=!Windows 2013" "acpi_osi=!Windows 2012" vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-30-generic N/A linux-backports-modules-3.19.0-30-generic N/A linux-firmware 1.143.3 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-07-24 (79 days ago) dmi.bios.date: 08/19/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F.25 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 802D dmi.board.vendor: Hewlett-Packard dmi.board.version: 58.39 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF.25:bd08/19/2015:svnHewlett-Packard:pnHPSpectrex360Convertible13:pvr:rvnHewlett-Packard:rn802D:rvr58.39:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP Spectre x360 Convertible 13 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1505067/+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