Similar experience her, starting with 1.1.7-1. Downgrading to 1.1.6-1 helps.
My device is a Steinberg UR22 mkII. The pulseaudio log ends with: I: [pulseaudio] alsa-util.c: Device iec958:4 doesn't support sample format s16le, changed to s32le. I: [pulseaudio] (alsa-lib)control.c: Invalid CTL iec958:4 I: [pulseaudio] alsa-util.c: Unable to attach to mixer iec958:4: No such file or directory I: [pulseaudio] alsa-util.c: Successfully attached to mixer 'hw:4' I: [pulseaudio] alsa-util.c: Device front:4 doesn't support sample format s16le, changed to s32le. I: [pulseaudio] alsa-util.c: Device iec958:4 doesn't support sample format s16le, changed to s32le. I: [pulseaudio] (alsa-lib)pcm_a52.c: Cannot get slave hw_params And a "pulseaudio" backtrace after the segmentation fault gives a consistent: #0 0x00007ffff076e3b0 in snd_pcm_state () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #1 0x00007ffff076e438 in ?? () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #2 0x00007ffff076eb9a in snd_pcm_drop () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #3 0x00007ffff07707c6 in snd_pcm_close () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #4 0x00007ffff0782da1 in ?? () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #5 0x00007ffff0770795 in snd_pcm_close () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #6 0x00007ffff0890ca2 in _snd_pcm_a52_open () from /usr/lib/x86_64-linux-gnu/alsa-lib/libasound_module_pcm_a52.so #7 0x00007ffff076d3c4 in ?? () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #8 0x00007ffff076da58 in ?? () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #9 0x00007ffff0770437 in snd_pcm_open () from /usr/lib/x86_64-linux-gnu/libasound.so.2 #10 0x00007ffff06e19e3 in pa_alsa_open_by_device_string () from /usr/lib/pulse-12.2/modules/libalsa-util.so #11 0x00007ffff06e1da2 in pa_alsa_open_by_template () from /usr/lib/pulse-12.2/modules/libalsa-util.so #12 0x00007ffff06ebf25 in ?? () from /usr/lib/pulse-12.2/modules/libalsa-util.so #13 0x00007ffff06f5c6b in pa_alsa_profile_set_probe () from /usr/lib/pulse-12.2/modules/libalsa-util.so #14 0x00007ffff0898c06 in module_alsa_card_LTX_pa__init () from /usr/lib/pulse-12.2/modules/module-alsa-card.so #15 0x00007ffff7e92366 in pa_module_load () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-12.2.so #16 0x00007ffff08a0dc4 in ?? () from /usr/lib/pulse-12.2/modules/module-udev-detect.so #17 0x00007ffff08a1e6b in module_udev_detect_LTX_pa__init () from /usr/lib/pulse-12.2/modules/module-udev-detect.so #18 0x00007ffff7e92366 in pa_module_load () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-12.2.so #19 0x00007ffff7e803fe in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/ libpulsecore-12.2.so #20 0x00007ffff7e86fee in pa_cli_command_execute_line_stateful () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-12.2.so #21 0x00007ffff7e877a1 in pa_cli_command_execute_file_stream () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-12.2.so #22 0x000055555555b4cc in main ()