Bug 6043

Hi!

Can you share a bit more information on your system?
(Perhaps, running "journalctl --no-hostname -k > dmesg.txt" and attaching resulting file.)

For what is worth, these are the lines that should follow:
...
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
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: FFMPEG VAAPI supported
info: [obs-ndi] hello ! (version 4.9.1)
...

Perhaps this can give you a hint of where OBS breaks.

Kind regards,
Momo.

-- Journal begins at Sat 2021-07-10 06:32:51 MSK, ends at Sat 2021-07-10 13:24:53 MSK. --
июл 10 07:06:05 kernel: ecryptfs_encrypt_page: Error attempting to write lower page; rc = [-4]
июл 10 07:06:05 kernel: ecryptfs_write_end: Error encrypting page (upper index [0x0000000000000005])
июл 10 11:06:05 kernel: Bluetooth: RFCOMM TTY layer initialized
июл 10 11:06:05 kernel: Bluetooth: RFCOMM socket layer initialized
июл 10 11:06:05 kernel: Bluetooth: RFCOMM ver 1.11
июл 10 11:06:12 kernel: obs[788060]: segfault at 10 ip 00007f95e434b65c sp 00007ffd346ce340 error 4 in libpython3.9.so.1.0[7f95e42ac000+1ab000]
июл 10 11:06:12 kernel: Code: 87 f6 ff e9 b4 87 f6 ff 66 0f 1f 44 00 00 48 8b 15 f1 26 20 00 41 54 48 b8 ef ff ff ff ff ff ff 7f 55 53 4c 8b a2 38 02 00 00 <49> 8b 6c 24 10 48 39 c6 0f 87 aa 87 f6 ff 89 f9 48 8d 7e 10 85 c9
июл 10 11:09:15 kernel: obs[795964]: segfault at 10 ip 00007fa11de4c65c sp 00007ffef12aa100 error 4 in libpython3.9.so.1.0[7fa11ddad000+1ab000]
июл 10 11:09:15 kernel: Code: 87 f6 ff e9 b4 87 f6 ff 66 0f 1f 44 00 00 48 8b 15 f1 26 20 00 41 54 48 b8 ef ff ff ff ff ff ff 7f 55 53 4c 8b a2 38 02 00 00 <49> 8b 6c 24 10 48 39 c6 0f 87 aa 87 f6 ff 89 f9 48 8d 7e 10 85 c9

Is it possible that you're running some Python plugins?
This looks very much like this Hexchat bug[1].

Can you try to disable those and see if that works?
(We can then decide on how and where this should be fixed.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1883982

>Is it possible that you're running some Python plugins?

OBS has default settings.

>Can you try to disable those and see if that works?

How can I do this? Nothing special in ~/.config/obs-studio/plugin_config/, rtmp-services  and text-freetype2 dirs only.

Perhaps if you just temporarily rename your config directory:
mv .config/obs-studio .config/obs-studio.bak; obs

Of course, it goes without saying to first close the OBS.

That way we can see if it is some specific config that breaks it.

It doesn't segment fault here.


[leigh@localhost ~]$ obs
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/locale/en-GB.ini
Attempted path: /usr/share/obs/obs-studio/locale/en-GB.ini
info: Using preferred locale 'en-GB'
Attempted path: share/obs/obs-studio/themes/Dark.qss
Attempted path: /usr/share/obs/obs-studio/themes/Dark.qss
info: CPU Name: AMD Ryzen 5 3600 6-Core Processor
info: CPU Speed: 2200.000MHz
info: Physical Cores: 6, Logical Cores: 12
info: Physical Memory: 32085MB Total, 11777MB Free
info: Kernel Version: Linux 5.12.14-300.fc34.x86_64
info: Distribution: Fedora 34
info: Session Type: x11
info: Window System: X11.0, Vendor: The X.Org Foundation, Version: 1.20.11
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_tbar_position_valueChanged(int)
QMetaObject::connectSlotsByName: No matching signal for on_actionShowTransitionProperties_triggered()
QMetaObject::connectSlotsByName: No matching signal for on_actionHideTransitionProperties_triggered()
info: OBS 27.0.1 (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 NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2
info: OpenGL loaded successfully, version 3.3.0 NVIDIA 470.42.01, 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'
warning: Failed to load 'en-GB' text for module: 'linux-alsa.so'
warning: Failed to load 'en-GB' text for module: 'linux-capture.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: Failed to load 'en-GB' text for module: 'linux-jack.so'
warning: Failed to load 'en-GB' text for module: 'linux-pulseaudio.so'
warning: v4l2loopback not installed, virtual camera disabled
info: NVENC supported
info: FFMPEG VAAPI supported
warning: Failed to load 'en-GB' text for module: 'obs-libfdk.so'
warning: Failed to load 'en-GB' text for module: 'obs-x264.so'
warning: Failed to load 'en-GB' text for module: 'rtmp-services.so'
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:     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: ---------------------------------
info: ==== Startup complete ===============================================
info: All scene data cleared
info: ------------------------------------------------
info: pulse-input: Server name: 'PulseAudio (on PipeWire 0.3.31) 14.0.0'
info: pulse-input: Audio format: s32le, 48000 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_output.pci-0000_09_00.1.hdmi-stereo-extra1.monitor'
info: [Loaded global audio device]: 'Desktop Audio'
info: pulse-input: Server name: 'PulseAudio (on PipeWire 0.3.31) 14.0.0'
info: pulse-input: Audio format: s32le, 48000 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_input.pci-0000_0d_00.4.analog-stereo'
info: [Loaded global audio device]: 'Mic/Aux'
info: Switched to scene 'Scene'
info: ------------------------------------------------
info: Loaded scenes:
info: - scene 'Scene':
info: ------------------------------------------------
qt.qpa.xcb: QXcbConnection: XCB error: 5 (BadAtom), sequence: 1304, resource id: 0, major code: 20 (GetProperty), minor code: 0
Attempted path: share/obs/obs-studio/images/overflow.png
Attempted path: /usr/share/obs/obs-studio/images/overflow.png
info: adding 21 milliseconds of audio buffering, total audio buffering is now 21 milliseconds (source: Desktop Audio)

info: adding 21 milliseconds of audio buffering, total audio buffering is now 42 milliseconds (source: Mic/Aux)

info: ==== Shutting down ==================================================
info: pulse-input: Stopped recording from 'alsa_output.pci-0000_09_00.1.hdmi-stereo-extra1.monitor'
info: pulse-input: Got 391 packets with 400384 frames
info: pulse-input: Stopped recording from 'alsa_input.pci-0000_0d_00.4.analog-stereo'
info: pulse-input: Got 382 packets with 391168 frames
info: All scene data cleared
info: ------------------------------------------------
info: [Scripting] Total detached callbacks: 0
info: Freeing OBS context data
info: == Profiler Results =============================
info: run_program_init: 422.973 ms
info:  ┣OBSApp::AppInit: 1.417 ms
info:  ┃ ┗OBSApp::InitLocale: 0.646 ms
info:  ┗OBSApp::OBSInit: 346.172 ms
info:    ┣obs_startup: 12.417 ms
info:    ┗OBSBasic::OBSInit: 303.58 ms
info:      ┣OBSBasic::InitBasicConfig: 0.055 ms
info:      ┣OBSBasic::ResetAudio: 0.113 ms
info:      ┣OBSBasic::ResetVideo: 82.43 ms
info:      ┣OBSBasic::InitOBSCallbacks: 0.003 ms
info:      ┣OBSBasic::InitHotkeys: 0.03 ms
info:      ┣obs_load_all_modules: 144.678 ms
info:      ┃ ┣obs_init_module(decklink-captions.so): 0.034 ms
info:      ┃ ┣obs_init_module(decklink-ouput-ui.so): 0.523 ms
info:      ┃ ┣obs_init_module(frontend-tools.so): 61.834 ms
info:      ┃ ┣obs_init_module(image-source.so): 0.004 ms
info:      ┃ ┣obs_init_module(linux-alsa.so): 0.001 ms
info:      ┃ ┣obs_init_module(linux-capture.so): 0.153 ms
info:      ┃ ┣obs_init_module(linux-decklink.so): 0.054 ms
info:      ┃ ┣obs_init_module(linux-jack.so): 0.001 ms
info:      ┃ ┣obs_init_module(linux-pulseaudio.so): 0.001 ms
info:      ┃ ┣obs_init_module(linux-v4l2.so): 2.237 ms
info:      ┃ ┣obs_init_module(obs-ffmpeg.so): 0.654 ms
info:      ┃ ┃ ┗nvenc_check: 0.623 ms
info:      ┃ ┣obs_init_module(obs-filters.so): 0.013 ms
info:      ┃ ┣obs_init_module(obs-libfdk.so): 0.001 ms
info:      ┃ ┣obs_init_module(obs-outputs.so): 0.001 ms
info:      ┃ ┣obs_init_module(obs-transitions.so): 0.003 ms
info:      ┃ ┣obs_init_module(obs-vst.so): 0.001 ms
info:      ┃ ┣obs_init_module(obs-x264.so): 0 ms
info:      ┃ ┣obs_init_module(rtmp-services.so): 0.381 ms
info:      ┃ ┣obs_init_module(text-freetype2.so): 0.004 ms
info:      ┃ ┗obs_init_module(vlc-video.so): 1.724 ms
info:      ┣OBSBasic::ResetOutputs: 0.077 ms
info:      ┣OBSBasic::CreateHotkeys: 0.027 ms
info:      ┣OBSBasic::InitService: 0.827 ms
info:      ┣OBSBasic::InitPrimitives: 0.106 ms
info:      ┗OBSBasic::Load: 8.118 ms
info: obs_hotkey_thread(25 ms): min=0.09 ms, median=0.13 ms, max=16.338 ms, 99th percentile=8.202 ms, 100% below 25 ms
info: audio_thread(Audio): min=0 ms, median=0.028 ms, max=0.074 ms, 99th percentile=0.038 ms
info: obs_graphics_thread(16.6667 ms): min=0.156 ms, median=0.371 ms, max=35.572 ms, 99th percentile=4.332 ms, 99.2218% below 16.667 ms
info:  ┣tick_sources: min=0.001 ms, median=0.003 ms, max=0.041 ms, 99th percentile=0.007 ms
info:  ┣output_frame: min=0.059 ms, median=0.103 ms, max=2.821 ms, 99th percentile=0.328 ms
info:  ┃ ┗gs_context(video->graphics): min=0.059 ms, median=0.103 ms, max=2.821 ms, 99th percentile=0.328 ms
info:  ┃   ┣render_video: min=0.02 ms, median=0.036 ms, max=0.27 ms, 99th percentile=0.076 ms
info:  ┃   ┃ ┗render_main_texture: min=0.016 ms, median=0.03 ms, max=0.257 ms, 99th percentile=0.064 ms
info:  ┃   ┗gs_flush: min=0.003 ms, median=0.005 ms, max=1.031 ms, 99th percentile=0.024 ms
info:  ┗render_displays: min=0.031 ms, median=0.183 ms, max=35.026 ms, 99th percentile=1.437 ms
info: =================================================
info: == Profiler Time Between Calls ==================
info: obs_hotkey_thread(25 ms): min=25.147 ms, median=25.208 ms, max=41.404 ms, 96.4809% within ±2% of 25 ms (0% lower, 3.51906% higher)
info: obs_graphics_thread(16.6667 ms): min=6.777 ms, median=16.667 ms, max=35.577 ms, 97.8558% within ±2% of 16.667 ms (0.974659% lower, 1.16959% higher)
info: =================================================
info: Number of memory leaks: 0

Removing of the config directory changes nothing.

(In reply to alexyecu from comment #7)
> Removing of the config directory changes nothing.

Try 

sudo dnf reinstall obs-\*

>sudo dnf reinstall obs-\*

Does not work. Guess there are some missed dependencies in the package: they are not in list, so they are not installed at my pc. Another variant is missing files in obs rpm-package, but looks like there are enough people who have obs working — that means all files are at their places.