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Thread: My audio only plays under certain conditions

  1. #1
    Join Date
    Oct 2007
    Beans
    1,824

    My audio only plays under certain conditions

    Hello, Ubuntu-ers. I triple boot Ubuntu, Debian, and MacOS on my late 2015 27" iMac. If I start a stream or an mp3 using mplayer, I can see mplayer start and the audio start, but nothing plays from the speaker.

    However, oddly, if I open firefox and start a youtube video, and then play an mp3 or stream, the audio works. I can then close youtube and play the audio forever. However, if the mp3 ends, I must start the cycle over again in order to hear the next one. I can use alsamixer to control the volume once it gets going.

    Here's some output:

    Code:
     brock@phasma:~$ aplay -l
    **** List of PLAYBACK Hardware Devices ****
    card 0: PCH [HDA Intel PCH], device 0: CS4206 Analog [CS4206 Analog]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 0: PCH [HDA Intel PCH], device 1: CS4206 Digital [CS4206 Digital]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 1: HDMI [HDA ATI HDMI], device 7: HDMI 1 [HDMI 1]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 1: HDMI [HDA ATI HDMI], device 8: HDMI 2 [HDMI 2]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 1: HDMI [HDA ATI HDMI], device 9: HDMI 3 [HDMI 3]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 1: HDMI [HDA ATI HDMI], device 10: HDMI 4 [HDMI 4]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 1: HDMI [HDA ATI HDMI], device 11: HDMI 5 [HDMI 5]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 1: HDMI [HDA ATI HDMI], device 12: HDMI 6 [HDMI 6]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    brock@phasma:~$
    Code:
     brock@phasma:~$ lspci | grep Audio
    00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
    01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Tonga HDMI Audio [Radeon R9 285/380]
    brock@phasma:~$
    I appreciate any advice. Thank you.

  2. #2
    Join Date
    May 2007
    Beans
    171
    Distro
    Xubuntu

    Re: My audio only plays under certain conditions

    Do you have pulseaudio installed? If so, take a look in "Sound Settings", when mplayer is running without sound. You can start it from the commandline with: pavucontrol

    I had some issues where different apps were sending sound to different outputs but fixed it in pavucontrol.

  3. #3
    Join Date
    Jul 2005
    Location
    I think I'm here! Maybe?
    Beans
    Hidden!

    Re: My audio only plays under certain conditions

    Thread moved to Apple Hardware Users. which is more appropriate and a better fit.
    DISTRO: Xubuntu 18.04-64bit --- Code-tags --- Boot-Repair --- Grub2 wiki & Grub2 Basics --- RootSudo --- Wireless-Info --- SolvedThreads

  4. #4
    Join Date
    Oct 2007
    Beans
    1,824

    Re: My audio only plays under certain conditions

    Quote Originally Posted by ajgreeny View Post
    Thread moved to Apple Hardware Users. which is more appropriate and a better fit.
    I do not believe this to be a hardware issue, since I did have good luck messing with pulse. Note that my iMac is really just a big AMD machine running the same software as anyone else. Please put this thread back where you found it. Thank you.

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