Studio controls hangs forever on "adding bridges"

[Henning Sprang]

I want to user studio-controls to run my jackd.

But when doing that, Jack seems to start basically, but eventially it's status is displayed as "adding bridges" - and this doesn't change even after minutes of waiting.

I have turned off any type of bridging - no midi, no pulse audio etc, so for one thing it's unclear what bridhges are to be added, and also why it hangs forever.

I could not find any logfiles that give me any further information what's happening, running studio-controls in the terminal also doesnt show more information.

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: studio-controls 2.2.8-0ubuntu0.21.10.1
ProcVersionSignature: Ubuntu 5.13.0-21.21-lowlatency 5.13.18
Uname: Linux 5.13.0-21-lowlatency x86_64
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Wed Dec 1 20:01:51 2021
InstallationDate: Installed on 2020-04-12 (597 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
PackageArchitecture: all
SourcePackage: studio-controls
UpgradeStatus: Upgraded to impish on 2021-11-14 (16 days ago)

[Len Ovens (len-ovenwerks)]

Please attach the output of convert-studio-controls run on the command line. (first suspect)

Also, from the studio-controls GUI please set System Tweaks-> Logging level to extra, then do a "Start or restart JACK". After that please attach a copy of ~/.log/autojack.log and
~/.log/autojack.log.1 (if the .1 exists)

[Henning Sprang (henning)]

here's the autojack.log - didn't know about that file...

There are actually some interesting exceptions.

[Henning Sprang (henning)]

And the output of convert-studio-controls:

Convert Studio Conrols Config File (version 2.2.8)
Search for: /home/henning/.config/autojack/autojack.json force: False
config file found, check it
checking config file for compatability with version 2.2.8
checking data base
Checking Devices
 Devices checked, continue data base check
write new config file

[Len Ovens (len-ovenwerks)]

This was fixed in 2.2.9

[Gavin Cannizzaro (gavinpc)]

I also experience this symptom, though maybe from a different cause.

Studio Controls gets stuck on "Adding Bridges", at which point the tail of ~/.log/autojack.log looks like

2022-06-14 16:30:34,767 - AutoJack - INFO - Got start signal.
2022-06-14 16:30:34,767 - AutoJack - INFO - Running: config_start()
2022-06-14 16:30:37,321 - AutoJack - INFO - Running: config_start after jack_stat
2022-06-14 16:30:55,830 - AutoJack - ERROR - Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 232, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "/usr/bin/autojack", line 1739, in ses_cb_command
    config_start()
  File "/usr/bin/autojack", line 819, in config_start
    extra_devices()
  File "/usr/bin/autojack", line 142, in extra_devices
    start_slave(fullname)
  File "/usr/bin/autojack", line 1364, in start_slave
    dsr = sub_db['frame']['rate']
TypeError: 'int' object is not subscriptable

I take this to mean that either `sub_db` or `sub_db['frame']` has an int value where a dict is expected.

I am running Studio Controls version 2.3.4 on Ubuntu 22.04.

[Erich Eickmeyer (eeickmeyer)]

Please don't necro-bump old bugs, file new bug reports.

[Len Ovens (len-ovenwerks)]

Also this is fixed already in 2.3.5