[mythtv-users] Ticket #8509: Fast chopping / stuttering in mythmusic after hdaudio merge

Kenneth Emerson kenneth.emerson at gmail.com
Sat May 29 20:32:01 UTC 2010

I have experienced the same results with MythMusic (described in ticket
8509) since upgrading to trunk with the hdaudio merge.  Prior to the merge I
was using ALSA:plughw,1,0 as my main audio device and "default" in MythMusic
setup for the audio device.

After upgrading to 24896, I switched the main audio device from
ALSA:plughw,1,0 to ALSA:iec958:CARD=External,DEV=0.  If I leave the music
audio device at default, I get the choppy,stuttering output described in
ticket 8509.  When I change the music device to /dev/dsp1 the music plays

If I leave the music device at default and check the PCM Analog box in the
general MythTV audio configuration screen, the frontend segfaults (I have a

The output from the frontend is:

2010-05-29 14:14:44.166 AO: Opening audio device
'iec958:CARD=External,DEV=0' ch
 2(2) sr 44100 sf signed 16 bit reenc 0
2010-05-29 14:14:44.167 Opening ALSA audio device
2010-05-29 14:14:44.895 ScreenSaverX11Private: DPMS Deactivated 1
2010-05-29 14:15:01.212 ScreenSaverX11Private: DPMS Reactivated 1
2010-05-29 14:15:03.522 Loading menu theme from

Music stutters.

2010-05-29 14:15:48.166 XMLParse: LoadTheme using
2010-05-29 14:15:48.514 XMLParse, Warning: Unknown: area in repeated image
2010-05-29 14:15:48.515 XMLParse, Warning: Unknown: area in repeated image
2010-05-29 14:15:49.029 AO: Opening audio device '/dev/dsp1' ch 2(2) sr
44100 sf
 signed 16 bit reenc 0

Music plays fine.

version info:
ken at mythtv:~$ mythfrontend --version
Please attach all output as a file in bug reports.
MythTV Version   : 24896
MythTV Branch    : trunk
Network Protocol : 57
Library API      : 0.23.20100526-2
QT Version       : 4.5.0
Options compiled in:
 linux debug using_oss using_alsa using_backend using_directfb using_dvb
irewire using_frontend using_hdhomerun using_hdpvr using_iptv using_ivtv
oystick_menu using_libfftw3 using_lirc using_mheg using_opengl_video
l_vsync using_qtdbus using_qtwebkit using_v4l using_x11 using_xrandr
using_xv us
ing_xvmc using_xvmc_vld using_xvmcw using_bindings_perl
using_bindings_python us
ing_opengl using_vdpau using_ffmpeg_threads using_live using_mheg
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