[Pkg-games-ubuntu] [Bug 1562208] Re: OpenAL Software Silent/Freezes

[Lampros Liontos]

"If your card 2 only support stereo, it is strange that surround21 can
be opened"

Maybe, maybe not; the assertion that the device is stereo is based on
the fact that it's a headset and has two obvious speakers.  Whether it
has some kind of subwoofer-style audio channel is not something I'm
certain about.

For clarification on the devices being referenced:
* Details on the headset can be found here: http://support.logitech.com/en_us/product/stereo-headset-h390
* Details on the desktop audio device (specifically named "Device")can be found here: https://www.sabrent.com/category/audio/USB-SND8/

"The major problem is why you override pcm.default with dmix whenn you
running pulseaudio"

I'm not sure if this is a question or not, but I'll assume it is.

The .asoundrc was originally set to use the pulse plug, rather than
dmix.  However, when the problem first began, I had to turn off
PulseAudio in order to get sound at all for most of the programs I'm
running.  However, the audio device used by default in ALSA is the
built-in audio in the desktop, which I do not use; the USB devices
listed above are cleaner and clearer.  I also didn't want to have
programs lock up while waiting for access to the audio device.
Therefore, I changed the audio default, first to Jack (hence the stanzas
with Jack on them), and then I decided it would just be better to use
the dmix device until the problem could be solved.  This way, I can
still make use of everything on the system, even if screencasts remain
impossible.

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https://bugs.launchpad.net/bugs/1562208

Title:
  OpenAL Software Silent/Freezes

Status in openal-soft package in Ubuntu:
  New
Status in pulseaudio package in Ubuntu:
  Incomplete

Bug description:
  Following an update I made this week to the system, I have attempted
  to play a number of games, including "X Rebirth" from gog.com,
  "Minecraft," downloaded from Mojang.  In those games making use of the
  OpenAL library, no sound is coming through PulseAudio; there is a
  stream listed in Pulse, but there is no sound, and the meter does not
  indicate that PulseAudio is even receiving any audio.  I am also
  noticing the problem in Blender, but in this case, the issue seems to
  cause the VSE to stick to the frame it's at when set to "A/V Sync"

  To make matters worse, once the stream shows in "pavucontrol," the
  program won't end.  If the audio is integral to the software, such as
  the case of Blender, the software itself will freeze when I attempt to
  close it; I will have to kill the program to make it shut down
  completely.  Other programs that use a sound server with OpenAL seem
  to close, but the stream is still showing in pavucontrol, and the
  process is still shown as running in "ps x".  Killing the frozen app
  makes it go away; and so far, the normal kill command will work;
  there's no need to "-9" it.

  Even openal-info freezes, after displaying the following:

  -----------------------

  Available playback devices:
      CM106 Like Sound Device Analog Stereo
  Available capture devices:
      M-Audio Fast Track MKII Analog Stereo
      Monitor of CM106 Like Sound Device Analog Stereo
  Default playback device: CM106 Like Sound Device Analog Stereo
  Default capture device: CM106 Like Sound Device Analog Stereo
  ALC version: 1.1

  ** Info for device "CM106 Like Sound Device Analog Stereo" **
  ALC version: 1.1
  ALC extensions:
      ALC_ENUMERATE_ALL_EXT, ALC_ENUMERATION_EXT, ALC_EXT_CAPTURE,
      ALC_EXT_DEDICATED, ALC_EXT_disconnect, ALC_EXT_EFX,
      ALC_EXT_thread_local_context, ALC_SOFTX_device_clock, ALC_SOFTX_HRTF,
      ALC_SOFT_loopback, ALC_SOFTX_midi_interface, ALC_SOFT_pause_device
  OpenAL vendor string: OpenAL Community
  OpenAL renderer string: OpenAL Soft
  OpenAL version string: 1.1 ALSOFT 1.16.0
  OpenAL extensions:
      AL_EXT_ALAW, AL_EXT_DOUBLE, AL_EXT_EXPONENT_DISTANCE, AL_EXT_FLOAT32,
      AL_EXT_IMA4, AL_EXT_LINEAR_DISTANCE, AL_EXT_MCFORMATS, AL_EXT_MULAW,
      AL_EXT_MULAW_MCFORMATS, AL_EXT_OFFSET, AL_EXT_source_distance_model,
      AL_LOKI_quadriphonic, AL_SOFT_block_alignment, AL_SOFT_buffer_samples,
      AL_SOFT_buffer_sub_data, AL_SOFT_deferred_updates, AL_SOFT_direct_channels,
      AL_SOFT_loop_points, AL_SOFT_MSADPCM, AL_SOFT_source_latency,
      AL_SOFT_source_length
  EFX version: 1.0
  Max auxiliary sends: 4
  Supported filters:
      Low-pass, High-pass, Band-pass
  Supported effects:
      EAX Reverb, Reverb, Chorus, Distortion, Echo, Flanger, Ring Modulator,
      Compressor, Equalizer, Dedicated Dialog, Dedicated LFE

  -------------------

  This problem persisted, even following a clean installation with no
  PPAs installed.  I'm assuming the problem is in OpenAL, because
  programs not making use of that library (YouTube, VLC, etc.) don't
  seem to have the problem.  The update that seemed to be the breaking
  point was an update to kernel 4.2.0-34 (I no longer have the original
  system, thinking a full restore would fix things), so there might be
  something in the new kernel that's interfering with OpenAL.

  -------------------

  The required information:

  Description:	Ubuntu 15.10
  Release:	15.10

  libopenal1:
    Installed: 1:1.16.0-3
    Candidate: 1:1.16.0-3
    Version table:
   *** 1:1.16.0-3 0
          500 http://us.archive.ubuntu.com/ubuntu/ wily/universe amd64 Packages
          100 /var/lib/dpkg/status

  -------------------

  Please let me know if there's any additional information that I will
  need to provide.

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