Re: [Denemo-devel] Denemo fails to start

[Richard Shann]

I think it would be very useful to check that this is due to your new
hardware and not due to any recent changes in Denemo.
Can you experiment with, say, Denemo 1.1.2 or whatever?
The only recent change that could be relevant is to the mutex unlocks,
and I see some messages about that. However, my suspicion is that what
you have uncovered is that Denemo does not handle preferences for
hardware well - assuming that earlier versions of Denemo behave the same
as current master then it will be useful to keep a record of what
preferences for audio and midi are being stored
in .denemo-1.1.9/denemorc
to do this, instead of removing the entire .denemo-1.1.9 tree, just
remove individual lines in denemorc - you can delete any line e.g.

    <audio_driver>portaudio</audio_driver>
    <midi_driver>portmidi</midi_driver>
...
    <portaudio_device>ALSA: default</portaudio_device>
    <portaudio_sample_rate>44100</portaudio_sample_rate>
    <portaudio_period_size>256</portaudio_period_size>
    ...
    <portmidi_input_device>ALSA: USB Keystation 49e MIDI 
1</portmidi_input_device>
    <portmidi_output_device>default</portmidi_output_device>

if you can identify which one(s) prevent startup, and what they get
replaced with on successful startup that could well pinpoint the
problem. I notice there is a preference     
<startmidiin>1</startmidiin>
which presumably relates to automatically trying to connect to a midi
controller - I guess without it you could change preferences first and
then start MIDI in. There is a drop down list of MIDI controllers to
choose from in the preferences...

I often see a problem with exiting Denemo - it hangs in something called
pthread_join, and I (always) have a problem if I have left Denemo
running while the machine is suspended - Denemo works fine but the MIDI
hardware has ceased to be connected properly and portmidi hangs on
exiting Denemo.

HTH

Richard



On Fri, 2014-10-03 at 10:13 +0200, Andreas Schneider wrote:
> Denemo fails to launch with the following messages:
> 
>    Gtk - WARNING : Locale not supported by C library.
>                       Using the fallback 'C' locale.
> (null) - WARNING : Couldn't register with accessibility bus: Did not
> receive a reply. Possible causes include: the remote application did not
> send a reply, the message bus security policy blocked the reply, the
> reply timeout expired, or the network connection was broken.
> Denemo - MESSAGE : Loading preference file:
> /home/andreas/.denemo-1.1.9/denemorc
> Denemo - MESSAGE : Audio driver is 'portaudio' 0
> Denemo - MESSAGE : Initializing Fluidsynth
> Denemo - MESSAGE : The default fluidsynth soundfont has been loaded
> Denemo - MESSAGE : Initializing Rubberband
> Denemo - MESSAGE : Initializing PortAudio backend
> Expression 'alsa_snd_pcm_hw_params_set_period_size_near( pcm, hwParams,
> &alsaPeriodFrames, &dir )' failed in 'src/hostapi/alsa/pa_linux_alsa.c',
> line: 924
> Expression 'alsa_snd_pcm_hw_params_set_period_size_near( pcm, hwParams,
> &alsaPeriodFrames, &dir )' failed in 'src/hostapi/alsa/pa_linux_alsa.c',
> line: 924
> Expression 'alsa_snd_pcm_hw_params_set_period_size_near( pcm, hwParams,
> &alsaPeriodFrames, &dir )' failed in 'src/hostapi/alsa/pa_linux_alsa.c',
> line: 924
> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
> 'cards.HDA-Intel.pcm.rear.0:CARD=0'
> ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer
> returned error: No such file or directory
> ALSA lib conf.c:4738:(snd_config_expand) Evaluate error: No such file or
> directory
> ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM rear
> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
> 'cards.HDA-Intel.pcm.center_lfe.0:CARD=0'
> ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer
> returned error: No such file or directory
> ALSA lib conf.c:4738:(snd_config_expand) Evaluate error: No such file or
> directory
> ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM center_lfe
> ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
> ALSA lib pcm_route.c:947:(find_matching_chmap) Found no matching channel map
> Cannot connect to server socket err = No such file or directory
> Cannot connect to server request channel
> jack server is not running or cannot be started
> Denemo - WARNING : Invalid device 'ALSA: USB Audio DAC: - (hw:2,0)'
> Denemo - WARNING : Initializing audio backend 'portaudio' failed,
> falling back to dummy
> Denemo - MESSAGE : Initializing dummy audio backend
> Denemo - MESSAGE : MIDI driver is 'portmidi'
> Denemo - MESSAGE : Initializing PortMidi backend
> Attempt to unlock mutex that was not locked
> Abgebrochen
> 
> I can remedy that by removing my .denemo-1.1.9 directory (i.e. after the
> removal Denemo starts up). When I quit, Denemo hangs after the console
> messages
> Denemo - MESSAGE : That's it, I quit!
> Denemo - MESSAGE : Destroying PortAudio backend
> 
> When I change MIDI settings, Denemo does not hang any more, but on quit
> I get the console messages
> Denemo - MESSAGE : Destroying PortAudio backend
> Denemo - MESSAGE : Destroying PortMidi backend
> Attempt to unlock mutex that was not locked
> Abgebrochen
> 
> Now I can redo my settings. But when the selected audio device is busy
> or the order of the audio devices changes (which sometimes happens after
> reboot for unknown reasons), Denemo again fails to start as in the
> beginning and I have to remove my .denemo-1.1.9 directory again.
> 
> Andreas
> 
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