was running well other than microphone issues but, after changing a couple of things, start in tray from no to yes and pulse audio to alsa, program now fails to start - no log but this is the output.. System is fully updated Debian Testing(Buster)
Attempted path: share/obs/obs-studio/locale/en-US.ini
Attempted path: /usr/share/obs/obs-studio/locale/en-US.ini
Attempted path: share/obs/obs-studio/locale.ini
Attempted path: /usr/share/obs/obs-studio/locale.ini
Attempted path: share/obs/obs-studio/themes/Dark.qss
Attempted path: /usr/share/obs/obs-studio/themes/Dark.qss
info: CPU Name: Intel(R) Xeon(R) CPU E3-1240 V2 @ 3.40GHz
info: CPU Speed: 2059.721MHz
info: Physical Cores: 4, Logical Cores: 8
info: Physical Memory: 15998MB Total, 14970MB Free
info: Kernel Version: Linux 4.16.0-1-amd64
info: Distribution: "Debian GNU/Linux" Unknown
info: Portable mode: false
QMetaObject::connectSlotsByName: No matching signal for on_advAudioProps_clicked()
QMetaObject::connectSlotsByName: No matching signal for on_advAudioProps_destroyed()
QMetaObject::connectSlotsByName: No matching signal for on_program_customContextMenuRequested(QPoint)
info: OBS 0.0.1 (linux)
info: ---------------------------------
info: ---------------------------------
info: audio settings reset:
samples per sec: 44100
speakers: 2
info: ---------------------------------
info: Initializing OpenGL...
info: OpenGL version: 3.2.0 NVIDIA 390.48
info: ---------------------------------
info: video settings reset:
base resolution: 1920x1080
output resolution: 1280x720
downscale filter: Bicubic
fps: 30/1
format: NV12
info: Audio monitoring device:
name: Default
id: default
info: ---------------------------------
libDeckLinkAPI.so: cannot open shared object file: No such file or directory
info: No blackmagic support
error: os_dlopen(libnvidia-encode.so.1->libnvidia-encode.so.1): libnvidia-encode.so.1: cannot open shared object file: No such file or directory
info: VLC found, VLC video source enabled
info: ---------------------------------
info: Loaded Modules:
info: vlc-video.so
info: text-freetype2.so
info: rtmp-services.so
info: obs-x264.so
info: obs-transitions.so
info: obs-outputs.so
info: obs-filters.so
info: obs-ffmpeg.so
info: linux-v4l2.so
info: linux-pulseaudio.so
info: linux-jack.so
info: linux-decklink.so
info: linux-capture.so
info: linux-alsa.so
info: image-source.so
info: frontend-tools.so
info: ---------------------------------
info: ==== Startup complete ===============================================
info: All scene data cleared
info: ------------------------------------------------
info: pulse-input: Server name: 'pulseaudio 11.1'
info: pulse-input: Audio format: s16le, 44100 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1.monitor'
info: pulse-am: Prevented feedback-loop in 'default'
info: pulse-input: Server name: 'pulseaudio 11.1'
info: pulse-input: Audio format: s16le, 44100 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_input.pci-0000_00_1b.0.analog-stereo'
info: source 'Mic/Aux' enabled push-to-mute
info: pulse-am: Server name: 'pulseaudio 11.1'
info: pulse-am: Audio format: s16le, 44100 Hz, 2 channels
info: pulse-am: Started Monitoring in 'alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1.monitor'
error: alsa-input: Failed to open 'front:CARD=PCH,DEV=0': Device or resource busy
info: adding 46 milliseconds of audio buffering, total audio buffering is now 46 milliseconds
error: alsa-input: Failed to open '': Device or resource busy
obs: ../nptl/pthread_mutex_lock.c:115: __pthread_mutex_lock: Assertion `mutex->__data.__owner == 0' failed.
Aborted
Attempted path: share/obs/obs-studio/locale/en-US.ini
Attempted path: /usr/share/obs/obs-studio/locale/en-US.ini
Attempted path: share/obs/obs-studio/locale.ini
Attempted path: /usr/share/obs/obs-studio/locale.ini
Attempted path: share/obs/obs-studio/themes/Dark.qss
Attempted path: /usr/share/obs/obs-studio/themes/Dark.qss
info: CPU Name: Intel(R) Xeon(R) CPU E3-1240 V2 @ 3.40GHz
info: CPU Speed: 2059.721MHz
info: Physical Cores: 4, Logical Cores: 8
info: Physical Memory: 15998MB Total, 14970MB Free
info: Kernel Version: Linux 4.16.0-1-amd64
info: Distribution: "Debian GNU/Linux" Unknown
info: Portable mode: false
QMetaObject::connectSlotsByName: No matching signal for on_advAudioProps_clicked()
QMetaObject::connectSlotsByName: No matching signal for on_advAudioProps_destroyed()
QMetaObject::connectSlotsByName: No matching signal for on_program_customContextMenuRequested(QPoint)
info: OBS 0.0.1 (linux)
info: ---------------------------------
info: ---------------------------------
info: audio settings reset:
samples per sec: 44100
speakers: 2
info: ---------------------------------
info: Initializing OpenGL...
info: OpenGL version: 3.2.0 NVIDIA 390.48
info: ---------------------------------
info: video settings reset:
base resolution: 1920x1080
output resolution: 1280x720
downscale filter: Bicubic
fps: 30/1
format: NV12
info: Audio monitoring device:
name: Default
id: default
info: ---------------------------------
libDeckLinkAPI.so: cannot open shared object file: No such file or directory
info: No blackmagic support
error: os_dlopen(libnvidia-encode.so.1->libnvidia-encode.so.1): libnvidia-encode.so.1: cannot open shared object file: No such file or directory
info: VLC found, VLC video source enabled
info: ---------------------------------
info: Loaded Modules:
info: vlc-video.so
info: text-freetype2.so
info: rtmp-services.so
info: obs-x264.so
info: obs-transitions.so
info: obs-outputs.so
info: obs-filters.so
info: obs-ffmpeg.so
info: linux-v4l2.so
info: linux-pulseaudio.so
info: linux-jack.so
info: linux-decklink.so
info: linux-capture.so
info: linux-alsa.so
info: image-source.so
info: frontend-tools.so
info: ---------------------------------
info: ==== Startup complete ===============================================
info: All scene data cleared
info: ------------------------------------------------
info: pulse-input: Server name: 'pulseaudio 11.1'
info: pulse-input: Audio format: s16le, 44100 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1.monitor'
info: pulse-am: Prevented feedback-loop in 'default'
info: pulse-input: Server name: 'pulseaudio 11.1'
info: pulse-input: Audio format: s16le, 44100 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_input.pci-0000_00_1b.0.analog-stereo'
info: source 'Mic/Aux' enabled push-to-mute
info: pulse-am: Server name: 'pulseaudio 11.1'
info: pulse-am: Audio format: s16le, 44100 Hz, 2 channels
info: pulse-am: Started Monitoring in 'alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1.monitor'
error: alsa-input: Failed to open 'front:CARD=PCH,DEV=0': Device or resource busy
info: adding 46 milliseconds of audio buffering, total audio buffering is now 46 milliseconds
error: alsa-input: Failed to open '': Device or resource busy
obs: ../nptl/pthread_mutex_lock.c:115: __pthread_mutex_lock: Assertion `mutex->__data.__owner == 0' failed.
Aborted