@Andon-2 -- I wish I had better news. :/ Long story short, I was able to build a 3.19-ish kernel with some additional ASoC patches earlier this week and the card showed up on the I2S bus with full input/output capabilities. However, whenever I played sounds, I never heard anything. PulseAudio showed data going into the card (signal levels were moving), but nothing was heard via speakers or headphones. I dug into amixer to figure out if something needed to be unmuted or an amplifier switched on and found nothing.
I tried with a newer kernel last night but there are some serious hard lockup bugs in the pre-3.20 patches. I'm now kicking myself for not saving the kernel branch that I had the other night. :/ The contact at Realtek feels that there's either a BIOS update required or one small option on the card isn't enabled. I'd like to test again but the kernel is a bit of a mess as of when I tested it last night. Hacking DSDT's won't fix the issue according to someone who has much more knowledge about ACPI tables than I do. TL;DR: - Waiting on 3.20-rc1 - Card shows up, can't hear anything - Realtek gave me some stuff to test -- 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/1413446 Title: Audio broken on 2015 XPS 13 (9343) in I2S mode in Ubuntu 14.10/15.04 Status in Dell Sputnik: Confirmed Status in HWE Next Project: Confirmed Status in linux package in Ubuntu: Triaged Status in linux package in Fedora: Unknown Bug description: (This is a public bug report for LP1402828.) This system has a dual-mode audio with an HDA and an I2S interface. Which shows up depends on the reported _OSI from the last cold boot. Since the kernels in Ubuntu 14.10/15.04 (15.04 uses 3.18 currently) report an _OSI of "Windows 2013", I2S mode is used for audio. A workaround is to pass acpi_os="!Windows 2013" as a kernel parameter, but this is non-optimal since the mode of the touchpad is affected. It also results in an alternate, less used and tested path in the firmware to be used. See the attached dmesg log for details on where the failure happens. Notably, $ dmesg -t | egrep "(audio|snd|INT3438)" dmar: ACPI device "INT3438:00" under DMAR at fed91000 as 00:13.0 snd_hda_intel 0000:00:03.0: enabling device (0000 -> 0002) snd_hda_intel 0000:00:03.0: irq 50 for MSI/MSI-X haswell-pcm-audio haswell-pcm-audio: error: ADSP boot timeout broadwell-audio broadwell-audio: ASoC: CPU DAI System Pin not registered platform broadwell-audio: Driver broadwell-audio requests probe deferral There's also a failure to load the codec firmware after a suspend/resume. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.18.0-9-generic 3.18.0-9.10 ProcVersionSignature: Ubuntu 3.18.0-9.10-generic 3.18.2 Uname: Linux 3.18.0-9-generic x86_64 ApportVersion: 2.15.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jared 2139 F.... pulseaudio CurrentDesktop: Unity Date: Wed Jan 21 20:47:40 2015 HibernationDevice: RESUME=UUID=af18bf4f-1453-4c8c-8b8e-abdc5d4e0674 InstallationDate: Installed on 2014-11-03 (80 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 0c45:670c Microdia Bus 001 Device 003: ID 04f3:2051 Elan Microelectronics Corp. Bus 001 Device 002: ID 8087:0a2a Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS 13 9343 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.18.0-9-generic root=/dev/mapper/ubuntu--vg-root ro video.use_native_backlight=1 video.use_native_backlight=1 RelatedPackageVersions: linux-restricted-modules-3.18.0-9-generic N/A linux-backports-modules-3.18.0-9-generic N/A linux-firmware 1.141 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-01-08 (14 days ago) dmi.bios.date: 11/04/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A00 dmi.board.name: 0144PA dmi.board.vendor: Dell Inc. dmi.board.version: X04 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA00:bd11/04/2014:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0144PA:rvrX04:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 13 9343 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1413446/+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
