AMD Radeon HD 8670A/8670M/8690M [1002:6660] No HDMI audio with open-source / proprietary driver

[Po-Hsu Lin]

CID: 201305-13624 HP Pavilion 14

With the open-source driver or the proprietary fglrx-update driver (2:13.350.1-0ubuntu2) on this I+A system, there is no HDMI audio output available.
Even adding the "radeon.audio=1" parameter to grub still can't make it work.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-37-generic 3.13.0-37.64
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 1601 F.... pulseaudio
 /dev/snd/controlC1: ubuntu 1601 F.... pulseaudio
CRDA:
 country TW:
  (2402 - 2472 @ 40), (3, 27)
  (5270 - 5330 @ 40), (3, 17), DFS
  (5735 - 5815 @ 40), (3, 30)
CurrentDesktop: Unity
Date: Thu Oct 9 02:07:56 2014
HibernationDevice: RESUME=UUID=2fdabca2-52b8-476d-8557-a5c268713544
InstallationDate: Installed on 2014-10-09 (0 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Hewlett-Packard HP Pavilion TS 14 Notebook PC
ProcFB:
 0 inteldrmfb
 1 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-37-generic.efi.signed root=UUID=7929c212-8512-4f68-9bbe-686a73b8ad05 ro quiet splash radeon.audio=1 vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-37-generic N/A
 linux-backports-modules-3.13.0-37-generic N/A
 linux-firmware 1.127.7
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/27/2013
dmi.bios.vendor: Insyde
dmi.bios.version: B.09
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 2162
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 29.0A
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrB.09:bd05/27/2013:svnHewlett-Packard:pnHPPavilionTS14NotebookPC:pvr089C100000000010000630100:rvnHewlett-Packard:rn2162:rvr29.0A:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion TS 14 Notebook PC
dmi.product.version: 089C100000000010000630100
dmi.sys.vendor: Hewlett-Packard

[Po-Hsu Lin (cypressyew)]

Verified with the latest 14.9 Catalyst driver (release date 9/29/2014), there is still no HDMI audio output here.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Po-Hsu Lin (cypressyew)]

Note that this issue could be platform related, since the HDMI works well both with / without proprietary driver on a Dell AIO 201305-13670

Alsa-info:
http://www.alsa-project.org/db/?f=05c9c13f3a6a9486722509b64636b298e8b7891a

[Anthony Wong (anthonywong)]

@PHLin

Can you test with the latest oem-audio-hda-daily-dkms from the PPA https://launchpad.net/~ubuntu-audio-dev/+archive/ubuntu/alsa-daily?

[Po-Hsu Lin (cypressyew)]

Hello Anthony,
This issue still exist even tested with the latest oem-audio-hda-daily-dkms - 0.201411191501~ubuntu14.04.1 from the PPA .

However, I found out that this issue is identical to bug 1383997, the detection works with power source plugged.
And adding the following entry into /etc/modprobe.d/alsa-base.conf could make it work without power source plugged:
"options snd-hda-intel jackpoll_ms=500"

Thanks