kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Po-Hsu Lin, the requirement for radeon.audio=1 on all AMD cards has been so since:
Author: Alex Deucher <alexdeucher@xxxxxxxxx>  2011-06-06 16:39:16
Committer: Dave Airlie <airlied@xxxxxxxxxx>  2011-06-08 05:14:41
Parent: 62fff811d73095bd95579d72f558f03c78f7914a (drm/radeon/kms: fix for radeon on systems >4GB without hardware iommu)
Child:  18367c0ec73671fbfea35f13ae52d39437c53eb5 (Merge branch 'drm-radeon-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6)
Branches: master, remotes/origin/master
Follows: v3.0-rc2
Precedes: v3.0-rc3

    drm/radeon/kms: disable hdmi audio by default
    
    The current RE'd code causes blank screens and
    display problems on a lot of systems.  So disable
    it by default for now.  It can still be enabled
    by setting the audio parameter to 1.  E.g.:
    radeon.audio=1
    
    Fixes:
    https://bugs.freedesktop.org/show_bug.cgi?id=38010
    https://bugs.freedesktop.org/show_bug.cgi?id=27731
    https://bugs.freedesktop.org/show_bug.cgi?id=35970
    https://bugs.freedesktop.org/show_bug.cgi?id=26195
    and many other reported problems.
    
    Signed-off-by: Alex Deucher <alexdeucher@xxxxxxxxx>
    Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>

I'm not aware of an initiative to quirk on a per hardware basis enabling
hdmi audio by default. It seems this was preventative as too many
collateral damage reports were being filed with it enabled. The
WORKAROUND is now explicitly documented in
https://help.ubuntu.com/community/RadeonDriver .

Given this, what would you like the end game for this report to be?

** Bug watch added: freedesktop.org Bugzilla #38010
   https://bugs.freedesktop.org/show_bug.cgi?id=38010

** Bug watch added: freedesktop.org Bugzilla #27731
   https://bugs.freedesktop.org/show_bug.cgi?id=27731

** Bug watch added: freedesktop.org Bugzilla #35970
   https://bugs.freedesktop.org/show_bug.cgi?id=35970

** Bug watch added: freedesktop.org Bugzilla #26195
   https://bugs.freedesktop.org/show_bug.cgi?id=26195

** Changed in: linux (Ubuntu)
       Status: Confirmed => Triaged

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https://bugs.launchpad.net/bugs/1186879

Title:
  AMD Radeon HD 6250/6480G, No HDMI audio output with radeon driver by
  default

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  CID: 201203-10697 Asus X55U (12.04.2)

  By default the radeon driver has no HDMI audio output.

  WORKAROUND: Use the fglrx driver.

  WORKAROUND: With the radeon driver use kernel parameter:
  radeon.audio=1

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-32-generic 3.5.0-32.53~precise1
  ProcVersionSignature: Ubuntu 3.5.0-32.53~precise1-generic 3.5.7.11
  Uname: Linux 3.5.0-32-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.2
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 1: Generic_1 [HD-Audio Generic], device 0: VT1802 Analog [VT1802 Analog]
     Subdevices: 1/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1663 F.... pulseaudio
   /dev/snd/pcmC1D0c:   ubuntu     1663 F...m pulseaudio
   /dev/snd/controlC0:  ubuntu     1663 F.... pulseaudio
  CRDA:
   country TW:
    (2402 - 2472 @ 40), (3, 27)
    (5270 - 5330 @ 40), (3, 17), DFS
    (5735 - 5815 @ 40), (3, 30)
  Card0.Amixer.info:
   Card hw:0 'Generic'/'HD-Audio Generic at 0xfeb44000 irq 47'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100200'
     Controls      : 6
     Simple ctrls  : 1
  Card0.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Card1.Amixer.info:
   Card hw:1 'Generic_1'/'HD-Audio Generic at 0xfeb40000 irq 16'
     Mixer name	: 'VIA VT1802'
     Components	: 'HDA:11068446,10431c23,00100000'
     Controls      : 28
     Simple ctrls  : 16
  Date: Mon Jun  3 14:11:32 2013
  HibernationDevice: RESUME=UUID=fdaaa1bf-4281-4fdc-a2cf-8ae08a9d29a4
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  Lsusb:
   Bus 001 Device 002: ID 058f:a014 Alcor Micro Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  MachineType: ASUSTeK COMPUTER INC. X55U
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-32-generic root=UUID=d034ccfb-863a-43af-ba1c-4e8d6a4638bc ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-32-generic N/A
   linux-backports-modules-3.5.0-32-generic  N/A
   linux-firmware                            1.79.4
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/03/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X55U.410
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X55U
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX55U.410:bd09/03/2012:svnASUSTeKCOMPUTERINC.:pnX55U:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX55U:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X55U
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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