OBS_VKCAPTURE=1 does nothing

[hunt3r0one]

Describe the bug
Originally, setting OBS_VKCAPTURE=1 would allow game windows to be captured with "Game Capture" in OBS Studio. Now, games must be launched with obs-vkcapture %command% otherwise the game cannot be captured.

System (please complete the following information):

• OS: openSUSE Tumbleweed
• GPU: AMD Radeon RX 580
• Mesa version: 24.1.7
• obs-vkcapture version: 1.5.1

OBS log:

10:02:59.391: Using EGL/X11
10:02:59.391: CPU Name: AMD Ryzen 5 3600 6-Core Processor
10:02:59.391: CPU Speed: 4161.687MHz
10:02:59.392: Physical Cores: 6, Logical Cores: 12
10:02:59.392: Physical Memory: 15885MB Total, 1475MB Free
10:02:59.392: Kernel Version: Linux 6.6.58-1-longterm
10:02:59.392: Distribution: "openSUSE Tumbleweed" "20241028"
10:02:59.392: Desktop Environment: KDE (KDE)
10:02:59.392: Session Type: wayland
10:02:59.392: Window System: X11.0 - vendor string: SUSE LINUX - vendor release: 12401003
10:02:59.392: Qt Version: 6.8.0 (runtime), 6.8.0 (compiled)
10:02:59.392: Portable mode: false
10:02:59.420: OBS 31.0.0 (linux)
10:02:59.420: ---------------------------------
10:02:59.420: ---------------------------------
10:02:59.420: audio settings reset:
10:02:59.420: 	samples per sec: 48000
10:02:59.420: 	speakers:        2
10:02:59.420: 	max buffering:   960 milliseconds
10:02:59.420: 	buffering type:  dynamically increasing
10:02:59.424: ---------------------------------
10:02:59.424: Initializing OpenGL...
10:02:59.493: Loading up OpenGL on adapter AMD AMD Radeon RX 580 Series (radeonsi, polaris10, LLVM 18.1.8, DRM 3.54, 6.6.58-1-longterm)
10:02:59.493: OpenGL loaded successfully, version 4.6 (Core Profile) Mesa 24.1.7, shading language 4.60
10:02:59.526: ---------------------------------
10:02:59.526: video settings reset:
10:02:59.526: 	base resolution:   1920x1080
10:02:59.526: 	output resolution: 1920x1080
10:02:59.526: 	downscale filter:  Bicubic
10:02:59.526: 	fps:               60/1
10:02:59.526: 	format:            NV12
10:02:59.526: 	YUV mode:          Rec. 709/Partial
10:02:59.526: NV12 texture support enabled
10:02:59.526: P010 texture support not available
10:02:59.529: Audio monitoring device:
10:02:59.529: 	name: Default
10:02:59.529: 	id: default
10:02:59.530: ---------------------------------
10:02:59.545: Failed to load 'en-US' text for module: 'decklink-captions.so'
10:02:59.561: Failed to load 'en-US' text for module: 'decklink-output-ui.so'
10:02:59.574: A DeckLink iterator could not be created.  The DeckLink drivers may not be installed
10:02:59.574: Failed to initialize module 'decklink.so'
10:02:59.845: [pipewire] Available capture sources:
10:02:59.845: [pipewire]     - Monitor source
10:02:59.845: [pipewire]     - Window source
10:02:59.880: v4l2loopback not installed, virtual camera not registered
10:02:59.896: [linux-vkcapture] plugin loaded successfully (version 1.5.1)
10:02:59.914: [obs-browser]: Version 2.24.2
10:02:59.915: [obs-browser]: CEF Version 127.0.6533.100 (runtime), 127.3.4+ge9e2e14+chromium-127.0.6533.100 (compiled)
10:02:59.996: VAAPI: API version 1.22
10:02:59.998: FFmpeg VAAPI H264 encoding supported
10:03:00.005: FFmpeg VAAPI AV1 encoding not supported
10:03:00.012: FFmpeg VAAPI HEVC encoding supported
10:03:00.066: os_dlopen(libnvidia-encode.so.1->libnvidia-encode.so.1): libnvidia-encode.so.1: cannot open shared object file: No such file or directory
10:03:00.066: 
10:03:00.066: NVENC not supported
10:03:00.066: Failed to initialize module 'obs-nvenc.so'
10:03:00.210: [obs-websocket] [obs_module_load] you can haz websockets (Version: 5.5.3 | RPC Version: 1)
10:03:00.210: [obs-websocket] [obs_module_load] Qt version (compile-time): 6.8.0 | Qt version (run-time): 6.8.0
10:03:00.210: [obs-websocket] [obs_module_load] Linked ASIO Version: 103002
10:03:00.210: DEPRECATION: obs_frontend_get_global_config is deprecated. Read from global or user configuration explicitly instead.
10:03:00.216: [obs-websocket] [obs_module_load] Module loaded.
10:03:00.289: [vlc-video]: VLC 3.0.21 Vetinari found, VLC video source enabled
10:03:00.290: ---------------------------------
10:03:00.290:   Loaded Modules:
10:03:00.290:     vlc-video.so
10:03:00.290:     text-freetype2.so
10:03:00.290:     rtmp-services.so
10:03:00.290:     obs-x264.so
10:03:00.290:     obs-websocket.so
10:03:00.290:     obs-webrtc.so
10:03:00.290:     obs-vst.so
10:03:00.290:     obs-transitions.so
10:03:00.290:     obs-qsv11.so
10:03:00.290:     obs-outputs.so
10:03:00.290:     obs-libfdk.so
10:03:00.290:     obs-filters.so
10:03:00.290:     obs-ffmpeg.so
10:03:00.290:     obs-browser.so
10:03:00.290:     linux-vkcapture.so
10:03:00.290:     linux-v4l2.so
10:03:00.290:     linux-pulseaudio.so
10:03:00.290:     linux-pipewire.so
10:03:00.290:     linux-pipewire-audio.so
10:03:00.290:     linux-capture.so
10:03:00.290:     linux-alsa.so
10:03:00.290:     image-source.so
10:03:00.290:     frontend-tools.so
10:03:00.290:     decklink-output-ui.so
10:03:00.290:     decklink-captions.so
10:03:00.290: ---------------------------------
10:03:00.290: ---------------------------------
10:03:00.290: Available Encoders:
10:03:00.290:   Video Encoders:
10:03:00.290: 	- ffmpeg_svt_av1 (SVT-AV1)
10:03:00.290: 	- ffmpeg_aom_av1 (AOM AV1)
10:03:00.290: 	- ffmpeg_vaapi_tex (FFmpeg VAAPI H.264)
10:03:00.290: 	- hevc_ffmpeg_vaapi_tex (FFmpeg VAAPI HEVC)
10:03:00.290: 	- obs_x264 (x264)
10:03:00.290:   Audio Encoders:
10:03:00.290: 	- ffmpeg_aac (FFmpeg AAC)
10:03:00.290: 	- ffmpeg_opus (FFmpeg Opus)
10:03:00.290: 	- ffmpeg_pcm_s16le (FFmpeg PCM (16-bit))
10:03:00.290: 	- ffmpeg_pcm_s24le (FFmpeg PCM (24-bit))
10:03:00.290: 	- ffmpeg_pcm_f32le (FFmpeg PCM (32-bit float))
10:03:00.290: 	- ffmpeg_alac (FFmpeg ALAC (24-bit))
10:03:00.290: 	- ffmpeg_flac (FFmpeg FLAC (16-bit))
10:03:00.290: 	- libfdk_aac (libfdk AAC)
10:03:00.290: ==== Startup complete ===============================================
10:03:00.338: All scene data cleared
10:03:00.338: ------------------------------------------------
10:03:00.342: pulse-input: Server name: 'PulseAudio (on PipeWire 1.2.6) 15.0.0'
10:03:00.342: pulse-input: Audio format: s32le, 48000 Hz, 2 channels
10:03:00.342: pulse-input: Started recording from 'alsa_output.pci-0000_06_00.4.analog-stereo.monitor' (default)
10:03:00.342: [Loaded global audio device]: 'Desktop Audio'
10:03:00.342: pulse-input: Server name: 'PulseAudio (on PipeWire 1.2.6) 15.0.0'
10:03:00.342: pulse-input: Audio format: s32le, 48000 Hz, 2 channels
10:03:00.342: pulse-input: Started recording from 'alsa_input.pci-0000_06_00.4.analog-stereo' (default)
10:03:00.342: [Loaded global audio device]: 'Mic/Aux'
10:03:00.344: Switched to scene 'Vkcapture'
10:03:00.344: ------------------------------------------------
10:03:00.344: Loaded scenes:
10:03:00.344: - scene 'Vkcapture':
10:03:00.344:     - source: 'Game Capture' (vkcapture-source)
10:03:00.344: ------------------------------------------------
10:03:00.893: adding 21 milliseconds of audio buffering, total audio buffering is now 21 milliseconds (source: Desktop Audio)
10:03:00.893: 
10:03:04.572: ==== Shutting down ==================================================
10:03:04.575: pulse-input: Stopped recording from 'alsa_output.pci-0000_06_00.4.analog-stereo.monitor'
10:03:04.575: pulse-input: Got 168 packets with 201600 frames
10:03:04.576: pulse-input: Stopped recording from 'alsa_input.pci-0000_06_00.4.analog-stereo'
10:03:04.576: pulse-input: Got 167 packets with 200400 frames
10:03:04.576: [linux-vkcapture] destroy
10:03:04.619: All scene data cleared
10:03:04.620: ------------------------------------------------
10:03:04.671: [obs-websocket] [obs_module_unload] Shutting down...
10:03:04.671: Tried to call obs_frontend_remove_event_callback with no callbacks!
10:03:04.671: [obs-websocket] [obs_module_unload] Finished shutting down.
10:03:04.671: [linux-vkcapture] plugin unloaded
10:03:04.676: [Scripting] Total detached callbacks: 0
10:03:04.676: Freeing OBS context data
10:03:04.688: == Profiler Results =============================
10:03:04.688: run_program_init: 1371.79 ms
10:03:04.688:  ┣OBSApp::AppInit: 11.935 ms
10:03:04.688:  ┃ ┗OBSApp::InitLocale: 0.667 ms
10:03:04.689:  ┗OBSApp::OBSInit: 1078.34 ms
10:03:04.689:    ┣obs_startup: 1.033 ms
10:03:04.689:    ┗OBSBasic::OBSInit: 1049.63 ms
10:03:04.689:      ┣OBSBasic::InitBasicConfig: 0.614 ms
10:03:04.689:      ┣OBSBasic::ResetAudio: 0.269 ms
10:03:04.689:      ┣OBSBasic::ResetVideo: 108.45 ms
10:03:04.689:      ┃ ┗obs_init_graphics: 105.272 ms
10:03:04.689:      ┃   ┗shader compilation: 31.916 ms
10:03:04.689:      ┣OBSBasic::InitOBSCallbacks: 0.005 ms
10:03:04.689:      ┣OBSBasic::InitHotkeys: 0.024 ms
10:03:04.689:      ┣obs_load_all_modules2: 759.956 ms
10:03:04.689:      ┃ ┣obs_init_module(decklink-captions.so): 0 ms
10:03:04.689:      ┃ ┣obs_init_module(decklink-output-ui.so): 0 ms
10:03:04.689:      ┃ ┣obs_init_module(decklink.so): 0.125 ms
10:03:04.689:      ┃ ┣obs_init_module(frontend-tools.so): 64.617 ms
10:03:04.689:      ┃ ┣obs_init_module(image-source.so): 0.013 ms
10:03:04.689:      ┃ ┣obs_init_module(linux-alsa.so): 0.003 ms
10:03:04.689:      ┃ ┣obs_init_module(linux-capture.so): 0.363 ms
10:03:04.689:      ┃ ┣obs_init_module(linux-pipewire-audio.so): 0.268 ms
10:03:04.689:      ┃ ┣obs_init_module(linux-pipewire.so): 19.376 ms
10:03:04.689:      ┃ ┣obs_init_module(linux-pulseaudio.so): 0.003 ms
10:03:04.689:      ┃ ┣obs_init_module(linux-v4l2.so): 3.675 ms
10:03:04.689:      ┃ ┣obs_init_module(linux-vkcapture.so): 0.255 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-browser.so): 0.069 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-ffmpeg.so): 27.27 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-filters.so): 0.029 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-libfdk.so): 0.002 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-nvenc.so): 0.15 ms
10:03:04.689:      ┃ ┃ ┗nvenc_check: 0.13 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-outputs.so): 0.006 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-qsv11.so): 16.068 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-transitions.so): 0.009 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-vst.so): 0.005 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-webrtc.so): 0.007 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-websocket.so): 5.269 ms
10:03:04.689:      ┃ ┣obs_init_module(obs-x264.so): 0.002 ms
10:03:04.689:      ┃ ┣obs_init_module(rtmp-services.so): 0.874 ms
10:03:04.689:      ┃ ┣obs_init_module(text-freetype2.so): 0.014 ms
10:03:04.689:      ┃ ┗obs_init_module(vlc-video.so): 2.06 ms
10:03:04.689:      ┣OBSBasic::InitService: 1.451 ms
10:03:04.689:      ┣OBSBasic::ResetOutputs: 8.156 ms
10:03:04.689:      ┣OBSBasic::CreateHotkeys: 0.134 ms
10:03:04.689:      ┣OBSBasic::InitPrimitives: 0.076 ms
10:03:04.689:      ┗OBSBasic::Load: 41.863 ms
10:03:04.689: obs_hotkey_thread(25 ms): min=0.045 ms, median=0.064 ms, max=0.499 ms, 99th percentile=0.193 ms, 100% below 25 ms
10:03:04.689: audio_thread(Audio): min=0.004 ms, median=0.032 ms, max=0.403 ms, 99th percentile=0.237 ms
10:03:04.689: obs_graphics_thread(16.6667 ms): min=0.061 ms, median=0.314 ms, max=15.731 ms, 99th percentile=4.33 ms, 100% below 16.667 ms
10:03:04.689:  ┣tick_sources: min=0 ms, median=0.003 ms, max=0.046 ms, 99th percentile=0.012 ms
10:03:04.689:  ┣output_frame: min=0.045 ms, median=0.071 ms, max=5.259 ms, 99th percentile=0.269 ms
10:03:04.689:  ┃ ┗gs_context(video->graphics): min=0.045 ms, median=0.07 ms, max=5.258 ms, 99th percentile=0.268 ms
10:03:04.689:  ┃   ┣render_video: min=0.006 ms, median=0.014 ms, max=0.074 ms, 99th percentile=0.051 ms
10:03:04.689:  ┃   ┃ ┗render_main_texture: min=0.004 ms, median=0.012 ms, max=0.043 ms, 99th percentile=0.041 ms
10:03:04.689:  ┃   ┗gs_flush: min=0.001 ms, median=0.002 ms, max=0.017 ms, 99th percentile=0.006 ms
10:03:04.689:  ┗render_displays: min=0.002 ms, median=0.211 ms, max=9.045 ms, 99th percentile=0.629 ms
10:03:04.689: =================================================
10:03:04.689: == Profiler Time Between Calls ==================
10:03:04.689: obs_hotkey_thread(25 ms): min=25.064 ms, median=25.122 ms, max=27.998 ms, 96.6346% within ±2% of 25 ms (0% lower, 3.36538% higher)
10:03:04.689: obs_graphics_thread(16.6667 ms): min=14.431 ms, median=16.667 ms, max=19.695 ms, 97.7199% within ±2% of 16.667 ms (1.30293% lower, 0.977199% higher)
10:03:04.689: =================================================
10:03:04.690: Number of memory leaks: 0

Game log:

OBS_VKCAPTURE=1 OBS_VKCAPTURE_QUIET=0 minetest

(thats it)

[nowrep]

The issue is most likely in the game, so you should try to get a log there. Either the vkcapture layer is not loading at all, or some issue when setting up the capture.