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Thread: Intermittent HDMI Audio using AMD HD 7950 and Ubuntu 13.04

  1. #1
    Join Date
    May 2013
    Beans
    1

    Intermittent HDMI Audio using AMD HD 7950 and Ubuntu 13.04

    Do anyone know how to resolve intermittent HDMI audio problem with AMD Radeon HD 7950?
    I installed the latest Catalyst drivers (13.4) and the problem still persists. Audio is intermittent. Every 1-2 seconds, I have a drop/audio freeze.

    I made sure that the problem is with the HDMI drivers, since when I put the headphones Jack at the rear (motherboard) audio play just fine. Same from front panel (case) audio connectors. I can also tell that the application (VLC), Pulse, ALSA works just fine. So the problem is really with AMD HDMI audio drivers.

    I tried to allso to
    - add "radeon.audio=1" to /etc/default/grub
    - updating ALSA drivers
    - Change video drivers (xorg-edgers, ppa and the .run for Catalyst 13.4)

    ..... Still nothing.

    Could someone point my out to how I can solve this problem? ...may be the sampling rate of AMD HDMI Audio drivers?

  2. #2
    Join Date
    Feb 2013
    Location
    B'ville Alabama
    Beans
    112
    Distro
    Ubuntu 13.10 Saucy Salamander

    Re: Intermittent HDMI Audio using AMD HD 7950 and Ubuntu 13.04

    I had the same issue, drivers made no difference. But I found a thread about updating to the 3.9 kernel, it fixed my audio problems.
    http://ubuntuforums.org/showthread.php?t=2140898
    Cheers!
    Phenom II X4 955 Denab BE OC 3.8mhz | 8gig G.Skill 1600 RAM | Corsair 750 PSU | XFX ATI Radeon HD 5770 x2 | 1TB WD Black HDD Win7 | 160gig WD HDD Ubuntu 13.10
    --Feel like your question has been answered, mark as SOLVED!

  3. #3
    Join Date
    Jun 2013
    Beans
    2

    Re: Intermittent HDMI Audio using AMD HD 7950 and Ubuntu 13.04

    Hello,

    I have the exact same problems with my AMD 7950 card. I've installed the latest catalyst driver and I have an audio freeze every 2 seconds with HDMI sound.
    Sound from the motherboard is fine.

    Did anyone succeed solving this problem ?

  4. #4
    Join Date
    Jun 2007
    Beans
    11,064

    Re: Intermittent HDMI Audio using AMD HD 7950 and Ubuntu 13.04

    If you want to try latest kernel module/driver: https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS

  5. #5
    Join Date
    Jun 2013
    Beans
    2

    Re: Intermittent HDMI Audio using AMD HD 7950 and Ubuntu 13.04

    Quote Originally Posted by Temüjin View Post
    If you want to try latest kernel module/driver: https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS
    Already tried that and I still have the problem. I've the last catalyst driver also.
    The strange thing is that the sound drop is very regular. It actually goes with a pattern like that:
    sound during 5 secondes then sound stop for half a second then sound for 5 seconds, and goes always with this pattern.

    Is there no work around to have soun over HDMI ?

  6. #6
    Join Date
    Jun 2007
    Beans
    11,064

    Re: Intermittent HDMI Audio using AMD HD 7950 and Ubuntu 13.04

    The only other workaround I can think of in this case is: https://wiki.ubuntu.com/Audio/PositionReporting

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