OBS 30.2.3 Segmentation fault

N

nbi

New Member
Installed OBS using the .deb package in Debian Trixie. It seg faults on start up:

----------------------------------------------------------------------------------------
info: Using EGL/X11
info: CPU Name: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
info: CPU Speed: 3308.110MHz
info: Physical Cores: 4, Logical Cores: 8
info: Physical Memory: 11963MB Total, 791MB Free
info: Kernel Version: Linux 5.19.0-2-amd64
info: Distribution: "Debian GNU/Linux" Unknown
info: Desktop Environment: XFCE (xfce)
info: Session Type: x11
info: Window System: X11.0, Vendor: The X.Org Foundation, Version: 1.21.1
info: Qt Version: 6.6.2 (runtime), 6.6.2 (compiled)
info: Portable mode: false
info: OBS 30.2.3 (linux)
info: ---------------------------------
info: ---------------------------------
info: audio settings reset:
samples per sec: 48000
speakers: 2
max buffering: 960 milliseconds
buffering type: dynamically increasing
info: ---------------------------------
info: Initializing OpenGL...
info: Loading up OpenGL on adapter NVIDIA Corporation NVIDIA GeForce GTX 1050/PCIe/SSE2
info: OpenGL loaded successfully, version 3.3.0 NVIDIA 535.183.01, 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: Rec. 709/Partial
info: NV12 texture support enabled
info: P010 texture support not available
info: Audio monitoring device:
name: Default
id: default
info: ---------------------------------
warning: No AJA devices found, skipping loading AJA UI plugin
warning: Failed to initialize module 'aja-output-ui.so'
warning: No AJA devices found, skipping loading AJA plugin
warning: Failed to initialize module 'aja.so'
warning: Failed to load 'en-US' text for module: 'decklink-captions.so'
warning: Failed to load 'en-US' text for module: 'decklink-output-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
warning: Failed to initialize module 'decklink.so'
info: [pipewire] No capture sources available
info: NVENC supported
Segmentation fault
----------------------------------------------------------------------------------------

/var/log/messages shows:
obs[3465611]: segfault at d8 ip 00007f9e456ee7e4 sp 00007ffdf19d7f08 error 4 in libX11.so.6.4.0[7f9e456d8000+8d000]

My system doesn't use DeckLink hardware so not sure what induced the DeckLink messages.
 
T

T3cube

New Member
Having the same issue with either flatpak or the base OBS package in the arch repos or from the AUR and building from git.


Code: 
debug: Found portal inhibitor
debug: Attempted path: /usr/bin/../share/obs/obs-studio/locale/en-US.ini
debug: Attempted path: /usr/bin/../share/obs/obs-studio/locale.ini
debug: Attempted path: /usr/bin/../share/obs/obs-studio/locale/en-GB.ini
info: Using preferred locale 'en-GB'
debug: Attempted path: /usr/bin/../share/obs/obs-studio/themes
debug: Attempted path: /usr/bin/../share/obs/obs-studio/themes/
warning: ReadOne on org.freedesktop.portal.Settings returned an invalid reply
warning: [Safe Mode] Unclean shutdown detected!
warning: [Safe Mode] User elected to launch normally.
info: Command Line Arguments: --verbose
info: Using EGL/X11
info: CPU Name: Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
info: CPU Speed: 800.000MHz
info: Physical Cores: 4, Logical Cores: 4
info: Physical Memory: 47123MB Total, 19056MB Free
info: Kernel Version: Linux 6.6.56-1-lts
info: Distribution: "Arch Linux" Unknown
info: Desktop Environment: KDE (plasmax11)
info: Session Type: x11
info: Window System: X11.0, Vendor: The X.Org Foundation, Version: 1.21.1
debug: found alternate keycode 62 for OBS_KEY_SHIFT which already has keycode 50
debug: found alternate keycode 105 for OBS_KEY_CONTROL which already has keycode 37
debug: found alternate keycode 108 for OBS_KEY_ALT which already has keycode 64
debug: found alternate keycode 129 for OBS_KEY_NUMPERIOD which already has keycode 91
debug: found alternate keycode 190 for OBS_KEY_REDO which already has keycode 137
debug: found alternate keycode 208 for OBS_KEY_VK_MEDIA_PLAY_PAUSE which already has keycode 172
debug: found alternate keycode 215 for OBS_KEY_VK_MEDIA_PLAY_PAUSE which already has keycode 172
debug: found alternate keycode 218 for OBS_KEY_PRINT which already has keycode 107
debug: found alternate keycode 231 for OBS_KEY_CANCEL which already has keycode 136
info: Qt Version: 6.8.0 (runtime), 6.7.2 (compiled)
info: Portable mode: false
info: OBS 30.2.1-1 (linux)
info: ---------------------------------
info: ---------------------------------
info: audio settings reset:
        samples per sec: 48000
        speakers:        2
        max buffering:   960 milliseconds
        buffering type:  dynamically increasing
info: ---------------------------------
info: Initializing OpenGL...
debug: Created EGLDisplay 0x64b8b776c100
info: Loading up OpenGL on adapter AMD AMD Radeon RX 6800 (radeonsi, navi21, LLVM 18.1.8, DRM 3.54, 6.6.56-1-lts)
info: OpenGL loaded successfully, version 4.6 (Core Profile) Mesa 24.2.5-arch1.1, shading language 4.60
info: ---------------------------------
info: video settings reset:
        base resolution:   2560x1440
        output resolution: 1920x1080
        downscale filter:  Bilinear
        fps:               60/1
        format:            NV12
        YUV mode:          sRGB/Full
info: NV12 texture support enabled
info: P010 texture support not available
info: Audio monitoring device:
        name: Default
        id: default
info: ---------------------------------
debug: ---------------------------------
debug: Loading module: decklink-captions.so
warning: Failed to load 'en-US' text for module: 'decklink-captions.so'
debug: ---------------------------------
debug: Loading module: decklink-output-ui.so
warning: Failed to load 'en-US' text for module: 'decklink-output-ui.so'
debug: ---------------------------------
debug: Loading module: decklink.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
warning: Failed to initialize module 'decklink.so'
debug: ---------------------------------
debug: Loading module: frontend-tools.so
debug: ---------------------------------
debug: Loading module: image-source.so
debug: ---------------------------------
debug: Loading module: linux-alsa.so
debug: ---------------------------------
debug: Loading module: linux-capture.so
debug: ---------------------------------
debug: Loading module: linux-jack.so
debug: ---------------------------------
debug: Loading module: linux-pipewire.so
info: [pipewire] Available capture sources:
info: [pipewire]     - Monitor source
info: [pipewire]     - Window source
debug: ---------------------------------
debug: Loading module: linux-pulseaudio.so
debug: ---------------------------------
debug: Loading module: linux-v4l2.so
warning: v4l2loopback not installed, virtual camera not registered
debug: ---------------------------------
debug: Loading module: obs-ffmpeg.so
warning: LIBVA_DRIVER_NAME variable is set, this could prevent FFmpeg VAAPI from working correctly
debug: VAAPI: Initializing display in vaapi_device_h264_supported
debug: Libva: VA-API version 1.22.0
debug: Libva: User environment variable requested driver 'radeonsi'
debug: Libva: Trying to open /usr/lib/dri/radeonsi_drv_video.so
debug: Libva: Found init function __vaDriverInit_1_22
debug: Libva: va_openDriver() returns 0
debug: VAAPI: Display initialized
info: VAAPI: API version 1.22
debug: VAAPI: 'Mesa Gallium driver 24.2.5-arch1.1 for AMD Radeon RX 6800 (radeonsi, navi21, LLVM 18.1.8, DRM 3.54, 6.6.56-1-lts)' in use for device '/dev/dri/renderD128'
debug: '/dev/dri/renderD128' support encoding with VAProfileH264ConstrainedBaseline
debug: '/dev/dri/renderD128' support encoding with VAProfileH264Main
debug: '/dev/dri/renderD128' support encoding with VAProfileH264High
info: FFmpeg VAAPI H264 encoding supported
debug: VAAPI: Initializing display in vaapi_device_av1_supported
debug: Libva: VA-API version 1.22.0
debug: Libva: User environment variable requested driver 'radeonsi'
debug: Libva: Trying to open /usr/lib/dri/radeonsi_drv_video.so
debug: Libva: Found init function __vaDriverInit_1_22
debug: Libva: va_openDriver() returns 0
debug: VAAPI: Display initialized
debug: VAAPI: 'Mesa Gallium driver 24.2.5-arch1.1 for AMD Radeon RX 6800 (radeonsi, navi21, LLVM 18.1.8, DRM 3.54, 6.6.56-1-lts)' in use for device '/dev/dri/renderD128'
debug: VAAPI: Initializing display in vaapi_device_av1_supported
debug: Libva: VA-API version 1.22.0
debug: Libva: User environment variable requested driver 'radeonsi'
debug: Libva: Trying to open /usr/lib/dri/radeonsi_drv_video.so
debug: Libva: Found init function __vaDriverInit_1_22
debug: Libva: va_openDriver() returns 0
debug: VAAPI: Display initialized
debug: VAAPI: 'Mesa Gallium driver 24.2.5-arch1.1 for Mesa Intel(R) HD Graphics 530 (SKL GT2)' in use for device '/dev/dri/renderD129'
fish: Job 1, 'obs --verbose' terminated by signal SIGSEGV (Address boundary error)
 
T

T3cube

New Member
Here is additional stuff i was able to get from journald
Code: 
Oct 20 10:02:39 Valicity kernel: obs[187750]: segfault at 0 ip 0000000000000000 sp 00007ffce644a2a8 error 14 in obs[58b920264000+52000] likely on CPU 1 (core 1, socket 0)
Oct 20 10:02:39 Valicity kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Oct 20 10:02:39 Valicity systemd-coredump[187811]: Process 187750 (obs) of user 1000 terminated abnormally with signal 11/SEGV, processing...
Oct 20 10:02:39 Valicity systemd[1]: Started Process Core Dump (PID 187811/UID 0).
Oct 20 10:02:40 Valicity systemd-coredump[187812]: [] Process 187750 (obs) of user 1000 dumped core.
                                                  
                                                   Stack trace of thread 187750:
                                                   #0  0x0000000000000000 n/a (n/a + 0x0)
                                                   #1  0x000074a13d83260a n/a (libgallium-24.2.5-arch1.1.so + 0x3260a)
                                                   #2  0x000074a15e51b30c vaGetConfigAttributes (libva.so.2 + 0x930c)
                                                   #3  0x000074a108030bb0 n/a (obs-ffmpeg.so + 0x16bb0)
                                                   #4  0x000074a108031b26 vaapi_display_av1_supported (obs-ffmpeg.so + 0x17b26)
                                                   #5  0x000074a108031c08 vaapi_device_av1_supported (obs-ffmpeg.so + 0x17c08)
                                                   #6  0x000074a108031cc9 vaapi_get_av1_default_device (obs-ffmpeg.so + 0x17cc9)
                                                   #7  0x000074a10802e193 obs_module_load (obs-ffmpeg.so + 0x14193)
                                                   #8  0x000074a161d51cde obs_init_module (libobs.so.0 + 0x52cde)
                                                   #9  0x000074a161d52257 n/a (libobs.so.0 + 0x53257)
                                                   #10 0x000074a161d52750 obs_find_modules2 (libobs.so.0 + 0x53750)
                                                   #11 0x000074a161d52e3f obs_load_all_modules2 (libobs.so.0 + 0x53e3f)
                                                   #12 0x000058b9203934df n/a (obs + 0x12f4df)
                                                   #13 0x000058b9202f3fb5 main (obs + 0x8ffb5)
                                                   #14 0x000074a15f234e08 n/a (libc.so.6 + 0x25e08)
                                                   #15 0x000074a15f234ecc __libc_start_main (libc.so.6 + 0x25ecc)
                                                   #16 0x000058b9202f7275 n/a (obs + 0x93275)
                                                  
                                                   Stack trace of thread 187770:
                                                   #0  0x000074a15f29fa19 n/a (libc.so.6 + 0x90a19)
                                                   #1  0x000074a15f2ab858 n/a (libc.so.6 + 0x9c858)
                                                   #2  0x000074a161dc0e79 n/a (libobs.so.0 + 0xc1e79)
                                                   #3  0x000074a15f2a339d n/a (libc.so.6 + 0x9439d)
                                                   #4  0x000074a15f32849c n/a (libc.so.6 + 0x11949c)
                                                  
                                                   Stack trace of thread 187769:
                                                   #0  0x000074a15f29fa19 n/a (libc.so.6 + 0x90a19)
                                                   #1  0x000074a15f2a27e2 pthread_cond_timedwait (libc.so.6 + 0x937e2)
                                                   #2  0x000074a161dba0aa os_event_timedwait (libobs.so.0 + 0xbb0aa)
                                                   #3  0x000074a161d44e35 obs_hotkey_thread (libobs.so.0 + 0x45e35)
                                                   #4  0x000074a15f2a339d n/a (libc.so.6 + 0x9439d)
                                                   #5  0x000074a15f32849c n/a (libc.so.6 + 0x11949c)
                                                  
                                                   Stack trace of thread 187774:
                                                   #0  0x000074a15f29fa19 n/a (libc.so.6 + 0x90a19)
                                                   #1  0x000074a15f2a2479 pthread_cond_wait (libc.so.6 + 0x93479)
                                                   #2  0x000074a13d8ced6e n/a (libgallium-24.2.5-arch1.1.so + 0xced6e)
                                                   #3  0x000074a13d8ab77c n/a (libgallium-24.2.5-arch1.1.so + 0xab77c)
                                                   #4  0x000074a13d8cec9d n/a (libgallium-24.2.5-arch1.1.so + 0xcec9d)
                                                   #5  0x000074a15f2a339d n/a (libc.so.6 + 0x9439d)
                                                   #6  0x000074a15f32849c n/a (libc.so.6 + 0x11949c)
                                                  
                                                   Stack trace of thread 187809:
                                                   #0  0x000074a15f32848d n/a (libc.so.6 + 0x11948d)
                                                   #1  0x000074a0beffe000 n/a (n/a + 0x0)
                                                   ELF object binary architecture: AMD x86-64
 
T

T3cube

New Member
Incase anyone has a similar issue to me, uninstall all libva-*-driver packages AND make sure that LIBVA_DRIVER and LIBVA_DRIVER_NAME environment variables are unset in your system. After doing this obs was able to launch both the flatpak version and the arch repo version.
 
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