$ ffado-mixer
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
QFileSystemWatcher: failed to add paths: /home/alex/.config/ibus/bus
Traceback (most recent call last):
  File "/usr/share/ffado-mixer-qt4/ffado/panelmanager.py", line 350, in updatePanels
    mixerwidget.initValues()
  File "/usr/share/ffado-mixer-qt4/ffado/mixer/saffire.py", line 138, in initValues
    self.mono = SaffireMixerMono(self)
  File "/usr/share/ffado-mixer-qt4/ffado/mixer/saffire.py", line 303, in __init__
    self.sldIN1Out910: ['/Mixer/MatrixMixerMono', 0, 0],
AttributeError: 'SaffireMixerMono' object has no attribute 'sldIN1Out910'