Comment 34 for bug 252335

0.9.12 seems worse to me than 0.9.11. Unplugging an USB soundcard that is currently playing something causes the stream to die. pulseaudio -vv output (alsa_output.pci_8086_284b_alsa_playback_0 is the device that the stream should be moved to):

W: alsa-util.c: Got POLLERR from ALSA
W: alsa-util.c: PCM state is DISCONNECTED
I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_DROP failed
I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_PREPARE failed
W: alsa-util.c: Could not recover from POLLERR|POLLNVAL|POLLHUP with snd_pcm_prepare(): No such device
I: module.c: Unloading "module-alsa-sink" (index: #0).
I: module-combine.c: Unconfiguring sink: alsa_output.usb_device_8bb_2900_noserial_if0_alsa_playback_0
D: module-zeroconf-publish.c: Successfully created entry group for thomas@x61: Simultaneous output to USB Audio CODEC - USB Audio.
D: module-zeroconf-publish.c: Removing entry group for thomas@x61: USB Audio CODEC - USB Audio.
W: module-rescue-streams.c: Failed to move sink input 2 "(null)" to alsa_output.pci_8086_284b_alsa_playback_0.

I had to revert back to the version of pavucontrol in intrepid. The new version causes pulseaudio to use 100% CPU, it causes crackling and often induces crashes.

On the bright side, the ladspa plugin is finally working correctly.