Hi, I am new at OBS and audio in general so apologies if I have missed anything that may seem obvious. OBS was working fine until today. I open it up today and it froze after I went into the settings.I force quit OBS and restarted it, and the same thing happened. This repeated a few times until finally, OBS does not even open. According to my program manager, it is running, but I do not see the UI. I am not sure what has caused this, but I suspect it being an audio issue due to the error log I posted below from running 'obs' in terminal. For reference, I use OBS to stream DJ sets using Mixxx, and I have JACK installed to capture Mixxx audio (since Mixxx suspends PulseAudio to use ALSA by default, I read on a Mixxx forum thread that JACK is how you get Mixxx's audio to register on OBS). This has worked fine in the past, but I am not sure why this error is being caused now since I have not changed anything. These are just my own thoughts, but as I am unfamiliar with what the log says, please let me know if anyone reading this thread can help. Thank you!
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) Core(TM) i7-10750H CPU @ 2.60GHz
info: CPU Speed: 4150.912MHz
info: Physical Cores: 6, Logical Cores: 12
info: Physical Memory: 15832MB Total, 12294MB Free
info: Kernel Version: Linux 5.4.0-48-generic
info: Distribution: "Ubuntu" "20.04"
info: Session Type: x11
info: Window System: X11.0, Vendor: The X.Org Foundation, Version: 1.20.8
info: Portable mode: false
Attempted path: share/obs/obs-studio/themes/Dark/no_sources.svg
Attempted path: /usr/share/obs/obs-studio/themes/Dark/no_sources.svg
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_actionGridMode_triggered()
QMetaObject::connectSlotsByName: No matching signal for on_program_customContextMenuRequested(QPoint)
QMetaObject::connectSlotsByName: No matching signal for on_transitionRemove_clicked()
info: OBS 26.1.1 (linux)
info: ---------------------------------
info: ---------------------------------
info: audio settings reset:
samples per sec: 48000
speakers: 2
info: ---------------------------------
info: Initializing OpenGL...
info: Loading up OpenGL on adapter NVIDIA Corporation GeForce GTX 1660 Ti/PCIe/SSE2
info: OpenGL loaded successfully, version 3.3.0 NVIDIA 450.66, shading language 3.30 NVIDIA via Cg compiler
info: ---------------------------------
info: video settings reset:
base resolution: 1920x1080
output resolution: 1920x1080
downscale filter: Bicubic
fps: 60/1
format: NV12
YUV mode: 709/Partial
info: NV12 texture support not available
info: Audio monitoring device:
name: Default
id: default
info: ---------------------------------
warning: Failed to load 'en-US' text for module: 'decklink-captions.so'
warning: Failed to load 'en-US' text for module: 'decklink-ouput-ui.so'
libDeckLinkAPI.so: cannot open shared object file: No such file or directory
warning: A DeckLink iterator could not be created. The DeckLink drivers may not be installed
info: No blackmagic support
warning: v4l2loopback not installed, virtual camera disabled
info: [obs-browser]: Version 2.9.1
info: [obs-browser]: CEF Version 76.1.13+gf19c584+chromium-76.0.3809.132
info: NVENC supported
info: FFMPEG VAAPI supported
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-vst.so
info: obs-transitions.so
info: obs-outputs.so
info: obs-libfdk.so
info: obs-filters.so
info: obs-ffmpeg.so
info: obs-browser.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: decklink-ouput-ui.so
info: decklink-captions.so
info: ---------------------------------
error: os_dlopen(../obs-plugins/obs-browser->../obs-plugins/obs-browser.so): ../obs-plugins/obs-browser.so: cannot open shared object file: No such file or directory
info: ==== Startup complete ===============================================
info: All scene data cleared
info: ------------------------------------------------
info: pulse-input: Server name: 'pulseaudio 13.99.1'
info: pulse-input: Audio format: s16le, 44100 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_output.pci-0000_00_1f.3.analog-stereo.monitor'
info: [Loaded global audio device]: 'Desktop Audio'
info: pulse-input: Server name: 'pulseaudio 13.99.1'
error: pulse-input: An error occurred while getting the source info!
info: [Loaded global audio device]: 'Mic/Aux'
Cannot lock down 82280346 byte memory area (Cannot allocate memory)
Cannot use real-time scheduling (RR/5)(1: Operation not permitted)
JackClient::AcquireSelfRealTime error
info: v4l2-input: Start capture from /dev/video3
error: v4l2-input: Unable to open device
error: v4l2-input: Initialization failed
info: alsa-input: PCM 'default' rate set to 44100
info: alsa-input: PCM 'default' channels set to 2
info: adding 42 milliseconds of audio buffering, total audio buffering is now 42 milliseconds (source: JACK Input Client)
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) Core(TM) i7-10750H CPU @ 2.60GHz
info: CPU Speed: 4150.912MHz
info: Physical Cores: 6, Logical Cores: 12
info: Physical Memory: 15832MB Total, 12294MB Free
info: Kernel Version: Linux 5.4.0-48-generic
info: Distribution: "Ubuntu" "20.04"
info: Session Type: x11
info: Window System: X11.0, Vendor: The X.Org Foundation, Version: 1.20.8
info: Portable mode: false
Attempted path: share/obs/obs-studio/themes/Dark/no_sources.svg
Attempted path: /usr/share/obs/obs-studio/themes/Dark/no_sources.svg
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_actionGridMode_triggered()
QMetaObject::connectSlotsByName: No matching signal for on_program_customContextMenuRequested(QPoint)
QMetaObject::connectSlotsByName: No matching signal for on_transitionRemove_clicked()
info: OBS 26.1.1 (linux)
info: ---------------------------------
info: ---------------------------------
info: audio settings reset:
samples per sec: 48000
speakers: 2
info: ---------------------------------
info: Initializing OpenGL...
info: Loading up OpenGL on adapter NVIDIA Corporation GeForce GTX 1660 Ti/PCIe/SSE2
info: OpenGL loaded successfully, version 3.3.0 NVIDIA 450.66, shading language 3.30 NVIDIA via Cg compiler
info: ---------------------------------
info: video settings reset:
base resolution: 1920x1080
output resolution: 1920x1080
downscale filter: Bicubic
fps: 60/1
format: NV12
YUV mode: 709/Partial
info: NV12 texture support not available
info: Audio monitoring device:
name: Default
id: default
info: ---------------------------------
warning: Failed to load 'en-US' text for module: 'decklink-captions.so'
warning: Failed to load 'en-US' text for module: 'decklink-ouput-ui.so'
libDeckLinkAPI.so: cannot open shared object file: No such file or directory
warning: A DeckLink iterator could not be created. The DeckLink drivers may not be installed
info: No blackmagic support
warning: v4l2loopback not installed, virtual camera disabled
info: [obs-browser]: Version 2.9.1
info: [obs-browser]: CEF Version 76.1.13+gf19c584+chromium-76.0.3809.132
info: NVENC supported
info: FFMPEG VAAPI supported
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-vst.so
info: obs-transitions.so
info: obs-outputs.so
info: obs-libfdk.so
info: obs-filters.so
info: obs-ffmpeg.so
info: obs-browser.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: decklink-ouput-ui.so
info: decklink-captions.so
info: ---------------------------------
error: os_dlopen(../obs-plugins/obs-browser->../obs-plugins/obs-browser.so): ../obs-plugins/obs-browser.so: cannot open shared object file: No such file or directory
info: ==== Startup complete ===============================================
info: All scene data cleared
info: ------------------------------------------------
info: pulse-input: Server name: 'pulseaudio 13.99.1'
info: pulse-input: Audio format: s16le, 44100 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_output.pci-0000_00_1f.3.analog-stereo.monitor'
info: [Loaded global audio device]: 'Desktop Audio'
info: pulse-input: Server name: 'pulseaudio 13.99.1'
error: pulse-input: An error occurred while getting the source info!
info: [Loaded global audio device]: 'Mic/Aux'
Cannot lock down 82280346 byte memory area (Cannot allocate memory)
Cannot use real-time scheduling (RR/5)(1: Operation not permitted)
JackClient::AcquireSelfRealTime error
info: v4l2-input: Start capture from /dev/video3
error: v4l2-input: Unable to open device
error: v4l2-input: Initialization failed
info: alsa-input: PCM 'default' rate set to 44100
info: alsa-input: PCM 'default' channels set to 2
info: adding 42 milliseconds of audio buffering, total audio buffering is now 42 milliseconds (source: JACK Input Client)