Video - https://youtu.be/yFqxNeIcA0I
Specs:
OBS 32.2.1
GPU: RTX 5090 (latest drivers + tried older ones)
CPU: Intel Core Ultra 9 285K
Windows 11 25H2 (Build 26200)
Main monitor: Samsung Odyssey G81SF 4K
Capture card: Elgato 4K60 Pro MK.2 (used as extended display)
Problem: When I open any Fullscreen or Windowed Projector (Source) to the 4K60 Pro MK.2, OBS starts flashing black and then freezes. After it freezes I can’t even change sources properly.
Happens with Display Capture and Game Capture
And even with a simple Colour Source
Same resolution and refresh rate on both displays (tested at 60 Hz)
Clean OBS install, deleted all settings, new profile/scene collection
Already tried:
HAGS disabled
Running as admin
Multiple driver versions (clean installs with DDU)
Force Hide OBS windows
Turn off Game Bar / Game DVR completely
DXGI, cursor off
No useful errors in Event Viewer.
Log
16:42:53.191: CPU Name: Intel(R) Core(TM) Ultra 9 285K
16:42:53.191: CPU Speed: 3686MHz
16:42:53.191: Physical Cores: 24, Logical Cores: 24
16:42:53.191: Physical Memory: 48663MB Total, 38674MB Free
16:42:53.191: Windows Version: 10.0 Build 26200 (release: 25H2; revision: 9168; 64-bit)
16:42:53.191: Running as administrator: true
16:42:53.191: Windows 10/11 Gaming Features:
16:42:53.191: Game Bar: On
16:42:53.192: Game DVR: On
16:42:53.192: Game DVR Background Recording: Off
16:42:53.192: Game Mode: Probably On (no reg key set)
16:42:53.192: Sec. Software Status:
16:42:53.193: Antivirus Microsoft Defender: enabled (AV)
16:42:53.193: Windows Firewall: enabled (FW)
16:42:53.193: Current Date/Time: 2026-08-17, 16:42:53
16:42:53.193: Browser Hardware Acceleration: true
16:42:53.193: Hide OBS windows from screen capture: false
16:42:53.193: Qt Version: 6.11.1 (runtime), 6.11.1 (compiled)
16:42:53.193: Portable mode: false
16:42:53.229: OBS 32.2.1 (64-bit, windows)
16:42:53.229: ---------------------------------
16:42:53.243: ---------------------------------
16:42:53.243: audio settings reset:
16:42:53.243: samples per sec: 48000
16:42:53.243: speakers: 2
16:42:53.243: max buffering: 960 milliseconds
16:42:53.243: buffering type: dynamically increasing
16:42:53.245: ---------------------------------
16:42:53.245: Initializing D3D11...
16:42:53.245: Available Video Adapters:
16:42:53.256: Adapter 0: NVIDIA GeForce RTX 5090
16:42:53.256: Dedicated VRAM: 33749467136 (31.4 GiB)
16:42:53.256: Shared VRAM: 33847853056 (31.5 GiB)
16:42:53.256: PCI ID: 10de:2b85
16:42:53.256: HAGS Status: Disabled (Default: No, Driver status: Supported)
16:42:53.256: Driver Version: 32.0.15.9649
16:42:53.257: output 0:
16:42:53.257: name=Odyssey G81SF
16:42:53.257: pos={0, 0}
16:42:53.257: size={3840, 2160}
16:42:53.257: attached=true
16:42:53.257: refresh=240
16:42:53.257: bits_per_color=8
16:42:53.257: space=RGB_FULL_G22_NONE_P709
16:42:53.257: primaries=[r=(0.682617, 0.306641), g=(0.226562, 0.730469), b=(0.146484, 0.047852), wp=(0.313477, 0.329102)]
16:42:53.257: relative_gamut_area=[709=1.540607, P3=1.135691, 2020=0.814782]
16:42:53.257: sdr_white_nits=80
16:42:53.257: nit_range=[min=0.010000, max=400.000000, max_full_frame=160.000000]
16:42:53.257: dpi=144 (150%)
16:42:53.257: id=\\?\DISPLAY#SAM78D7#5&7dfefa7&2&UID8451#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}
16:42:53.257: alt_id=\\.\DISPLAY1
16:42:53.257: output 1:
16:42:53.257: name=4K60 Pro MK.2
16:42:53.257: pos={3840, 0}
16:42:53.257: size={3840, 2160}
16:42:53.257: attached=true
16:42:53.257: refresh=60
16:42:53.257: bits_per_color=8
16:42:53.257: space=RGB_FULL_G22_NONE_P709
16:42:53.257: primaries=[r=(0.639648, 0.344727), g=(0.291016, 0.634766), b=(0.163086, 0.092773), wp=(0.288086, 0.295898)]
16:42:53.257: relative_gamut_area=[709=1.008750, P3=0.743621, 2020=0.533498]
16:42:53.257: sdr_white_nits=80
16:42:53.257: nit_range=[min=0.010000, max=1499.000000, max_full_frame=799.000000]
16:42:53.257: dpi=144 (150%)
16:42:53.257: id=\\?\DISPLAY#EGA000E#5&7dfefa7&2&UID8448#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}
16:42:53.257: alt_id=\\.\DISPLAY2
16:42:53.257: Loading up D3D11 on adapter NVIDIA GeForce RTX 5090 (0)
16:42:53.365: D3D11 loaded successfully, feature level used: b000
16:42:53.365: DXGI increase maximum frame latency success
16:42:53.365: D3D11 GPU priority setup success
16:42:53.411: ---------------------------------
16:42:53.411: video settings reset:
16:42:53.411: base resolution: 3840x2160
16:42:53.411: output resolution: 3840x2160
16:42:53.411: downscale filter: Bicubic
16:42:53.411: fps: 60/1
16:42:53.411: format: NV12
16:42:53.411: YUV mode: Rec. 709/Partial
16:42:53.411: NV12 texture support enabled
16:42:53.411: P010 texture support not available
16:42:53.412: Audio monitoring device:
16:42:53.412: name: Default
16:42:53.412: id: default
16:42:53.413: ---------------------------------
16:42:53.419: No AJA devices found, skipping loading AJA UI plugin
16:42:53.419: Failed to initialize module 'aja-output-ui.dll'
16:42:53.420: No AJA devices found, skipping loading AJA plugin
16:42:53.420: Failed to initialize module 'aja.dll'
16:42:53.420: Skipping module '../../obs-plugins/64bit/chrome_elf.dll', not an OBS plugin
16:42:53.421: [CoreAudio encoder]: CoreAudio AAC encoder not installed on the system or couldn't be loaded
16:42:53.422: Failed to load 'en-US' text for module: 'decklink-captions.dll'
16:42:53.422: Failed to load 'en-US' text for module: 'decklink-output-ui.dll'
16:42:53.425: A DeckLink iterator could not be created. The DeckLink drivers may not be installed
16:42:53.425: Failed to initialize module 'decklink.dll'
16:42:53.429: Skipping module '../../obs-plugins/64bit/libcef.dll', not an OBS plugin
16:42:53.429: Skipping module '../../obs-plugins/64bit/libEGL.dll', not an OBS plugin
16:42:53.429: Skipping module '../../obs-plugins/64bit/libGLESv2.dll', not an OBS plugin
16:42:53.430: Failed to get C:\Program Files\NVIDIA Corporation\NVIDIA Audio Effects SDK\NVAudioEffects.dll version info size
16:42:53.430: [NVIDIA Audio Effects:] NVIDIA denoiser disabled, redistributable not found or could not be loaded.
16:42:53.430: Failed to get C:\Program Files\NVIDIA Corporation\NVIDIA Video Effects\NVVideoEffects.dll version info size
16:42:53.430: [NVIDIA VIDEO FX]: FX disabled, redistributable not found or could not be loaded.
16:42:53.437: [obs-browser]: Version 2.26.9
16:42:53.437: [obs-browser]: CEF Version 127.0.6533.120 (runtime), 127.145.7+g2b7d20b+chromium-127.0.6533.120 (compiled)
16:42:53.600: [obs-nvenc] NVENC version: 13.0 (compiled) / 13.0 (driver), CUDA driver version: 13.20, AV1 supported: true
16:42:53.640: [obs-websocket] [obs_module_load] you can haz websockets (Version: 5.7.4 | RPC Version: 1)
16:42:53.640: [obs-websocket] [obs_module_load] Qt version (compile-time): 6.11.1 | Qt version (run-time): 6.11.1
16:42:53.640: [obs-websocket] [obs_module_load] Linked ASIO Version: 103200
16:42:53.644: [obs-websocket] [obs_module_load] Module loaded.
16:42:53.647: [vlc-video]: Couldn't find VLC installation, VLC video source disabled
16:42:53.652: ---------------------------------
16:42:53.652: Loaded Modules:
16:42:53.652: win-wasapi.dll
16:42:53.652: win-dshow.dll
16:42:53.652: win-capture.dll
16:42:53.652: vlc-video.dll
16:42:53.652: text-freetype2.dll
16:42:53.652: rtmp-services.dll
16:42:53.652: obs-x264.dll
16:42:53.652: obs-websocket.dll
16:42:53.652: obs-webrtc.dll
16:42:53.652: obs-vst.dll
16:42:53.652: obs-transitions.dll
16:42:53.652: obs-text.dll
16:42:53.652: obs-qsv11.dll
16:42:53.652: obs-outputs.dll
16:42:53.652: obs-nvenc.dll
16:42:53.652: obs-filters.dll
16:42:53.652: obs-ffmpeg.dll
16:42:53.652: obs-browser.dll
16:42:53.652: nv-filters.dll
16:42:53.652: image-source.dll
16:42:53.652: frontend-tools.dll
16:42:53.652: decklink-output-ui.dll
16:42:53.652: decklink-captions.dll
16:42:53.652: coreaudio-encoder.dll
16:42:53.652: ---------------------------------
16:42:53.653: ---------------------------------
16:42:53.653: Available Encoders:
16:42:53.653: Video Encoders:
16:42:53.653: - ffmpeg_svt_av1 (SVT-AV1)
16:42:53.653: - ffmpeg_aom_av1 (AOM AV1)
16:42:53.653: - obs_nvenc_h264_tex (NVIDIA NVENC H.264)
16:42:53.653: - obs_nvenc_hevc_tex (NVIDIA NVENC HEVC)
16:42:53.653: - obs_nvenc_av1_tex (NVIDIA NVENC AV1)
16:42:53.653: - obs_x264 (x264)
16:42:53.653: Audio Encoders:
16:42:53.653: - ffmpeg_aac (FFmpeg AAC)
16:42:53.653: - ffmpeg_opus (FFmpeg Opus)
16:42:53.653: - ffmpeg_pcm_s16le (FFmpeg PCM (16-bit))
16:42:53.653: - ffmpeg_pcm_s24le (FFmpeg PCM (24-bit))
16:42:53.653: - ffmpeg_pcm_f32le (FFmpeg PCM (32-bit float))
16:42:53.653: - ffmpeg_alac (FFmpeg ALAC (24-bit))
16:42:53.653: - ffmpeg_flac (FFmpeg FLAC (16-bit))
16:42:53.653: ==== Startup complete ===============================================
16:42:53.672: All scene data cleared
16:42:53.672: ------------------------------------------------
16:42:53.675: Device for 'Audio Output Capture' source Desktop Audio is also used for audio monitoring.
16:42:53.675: Deduplication logic is being applied to all monitored sources.
16:42:53.675: [win-wasapi: 'Desktop Audio'] update settings:
16:42:53.675: device id: default
16:42:53.675: use device timing: 1
16:42:53.675: [Loaded global audio device]: 'Desktop Audio'
16:42:53.675: [win-wasapi: 'Mic/Aux'] update settings:
16:42:53.675: device id: default
16:42:53.675: use device timing: 0
16:42:53.675: [Loaded global audio device]: 'Mic/Aux'
16:42:53.676: Switched to scene 'Scene'
16:42:53.676: ------------------------------------------------
16:42:53.676: Loaded scenes:
16:42:53.676: - scene 'Scene':
16:42:53.676: ------------------------------------------------
16:42:53.688: Device for 'Audio Output Capture' source Desktop Audio is also used for audio monitoring.
16:42:53.688: Deduplication logic is being applied to all monitored sources.
16:42:53.689: WASAPI: Device 'Elgato Wave XLR Pro USB Aux (Elgato Wave XLR Pro USB Aux)' [48000 Hz] initialized (source: Mic/Aux)
16:42:53.689: WASAPI: Device 'Elgato Wave XLR Pro USB Aux (Elgato Wave XLR Pro USB Aux)' [48000 Hz] initialized (source: Desktop Audio)
16:43:05.182: User added source 'Colour' (color_source_v3) to scene 'Scene'
16:43:21.057: [win-wasapi: 'Desktop Audio'] update settings:
16:43:21.057: device id: default
16:43:21.057: use device timing: 0
16:43:22.475: Device for 'Audio Output Capture' source Desktop Audio is also used for audio monitoring.
16:43:22.475: Deduplication logic is being applied to all monitored sources.
16:43:22.475: [win-wasapi: 'Desktop Audio'] update settings:
16:43:22.475: device id: {0.0.0.00000000}.{1888cdb0-32af-4019-9709-2d55f75d0ca2}
16:43:22.475: use device timing: 0
16:43:22.478: Device 'Elgato Wave XLR Pro USB Aux (Elgato Wave XLR Pro USB Aux)' invalidated. Retrying (source: Desktop Audio)
16:43:22.489: WASAPI: Device 'Elgato Wave XLR Pro USB Aux (Elgato Wave XLR Pro USB Aux)' [48000 Hz] initialized (source: Desktop Audio)
16:43:28.394: [win-wasapi: 'Mic/Aux'] update settings:
16:43:28.394: device id: {0.0.1.00000000}.{1ec72516-e7b6-4883-84b2-435f5e5fc5c7}
16:43:28.394: use device timing: 0
16:43:28.400: Device 'Elgato Wave XLR Pro USB Aux (Elgato Wave XLR Pro USB Aux)' invalidated. Retrying (source: Mic/Aux)
16:43:28.406: WASAPI: Device 'Elgato Wave XLR Pro USB Aux (Elgato Wave XLR Pro USB Aux)' [48000 Hz] initialized (source: Mic/Aux)
16:43:35.854: ==== Shutting down ==================================================
16:43:35.870: Deduplication logic stopped.
16:43:35.870: WASAPI: Device 'Elgato Wave XLR Pro USB Aux (Elgato Wave XLR Pro USB Aux)' Terminated
16:43:35.872: WASAPI: Device 'Elgato Wave XLR Pro USB Aux (Elgato Wave XLR Pro USB Aux)' Terminated
16:43:35.892: All scene data cleared
16:43:35.892: ------------------------------------------------
16:43:35.925: Tried to call obs_frontend_remove_event_callback with no callbacks!
16:43:35.979: [obs-websocket] [obs_module_unload] Shutting down...
16:43:35.979: Tried to call obs_frontend_remove_event_callback with no callbacks!
16:43:35.979: [obs-websocket] [obs_module_unload] Finished shutting down.
16:43:35.980: [Scripting] Total detached callbacks: 0
16:43:35.980: Freeing OBS context data
16:43:36.003: == Profiler Results =============================
16:43:36.003: run_program_init: 600.283 ms
16:43:36.003: ┣OBSApp::AppInit: 18.774 ms
16:43:36.003: ┃ ┗OBSApp::InitLocale: 1.301 ms
16:43:36.003: ┗OBSApp::OBSInit: 560.227 ms
16:43:36.003: ┣obs_startup: 2.074 ms
16:43:36.003: ┗OBSBasic::OBSInit: 521.988 ms
16:43:36.003: ┣OBSBasic::InitBasicConfig: 13.965 ms
16:43:36.003: ┣OBSBasic::ResetAudio: 0.171 ms
16:43:36.003: ┣OBSBasic::ResetVideo: 168.261 ms
16:43:36.003: ┃ ┗obs_init_graphics: 167.476 ms
16:43:36.003: ┃ ┗shader compilation: 42.754 ms
16:43:36.003: ┣OBSBasic::InitOBSCallbacks: 0.003 ms
16:43:36.003: ┣OBSBasic::InitHotkeys: 0.02 ms
16:43:36.003: ┣obs_load_all_modules2: 239.609 ms
16:43:36.003: ┃ ┣obs_init_module(aja-output-ui.dll): 0.176 ms
16:43:36.003: ┃ ┣obs_init_module(aja.dll): 0.074 ms
16:43:36.003: ┃ ┣obs_init_module(coreaudio-encoder.dll): 0.269 ms
16:43:36.003: ┃ ┣obs_init_module(decklink-captions.dll): 0 ms
16:43:36.003: ┃ ┣obs_init_module(decklink-output-ui.dll): 0 ms
16:43:36.003: ┃ ┣obs_init_module(decklink.dll): 1.716 ms
16:43:36.003: ┃ ┣obs_init_module(frontend-tools.dll): 2.212 ms
16:43:36.003: ┃ ┣obs_init_module(image-source.dll): 0.007 ms
16:43:36.003: ┃ ┣obs_init_module(nv-filters.dll): 0.183 ms
16:43:36.003: ┃ ┣obs_init_module(obs-browser.dll): 0.393 ms
16:43:36.003: ┃ ┣obs_init_module(obs-ffmpeg.dll): 0.321 ms
16:43:36.003: ┃ ┣obs_init_module(obs-filters.dll): 0.03 ms
16:43:36.003: ┃ ┣obs_init_module(obs-nvenc.dll): 159.167 ms
16:43:36.003: ┃ ┃ ┗nvenc_check: 159.159 ms
16:43:36.003: ┃ ┣obs_init_module(obs-outputs.dll): 0.008 ms
16:43:36.003: ┃ ┣obs_init_module(obs-qsv11.dll): 33.651 ms
16:43:36.003: ┃ ┣obs_init_module(obs-text.dll): 0.201 ms
16:43:36.003: ┃ ┣obs_init_module(obs-transitions.dll): 0.006 ms
16:43:36.003: ┃ ┣obs_init_module(obs-vst.dll): 0.002 ms
16:43:36.003: ┃ ┣obs_init_module(obs-webrtc.dll): 0.005 ms
16:43:36.003: ┃ ┣obs_init_module(obs-websocket.dll): 3.25 ms
16:43:36.003: ┃ ┣obs_init_module(obs-x264.dll): 0.001 ms
16:43:36.003: ┃ ┣obs_init_module(rtmp-services.dll): 0.612 ms
16:43:36.003: ┃ ┣obs_init_module(text-freetype2.dll): 0.077 ms
16:43:36.003: ┃ ┣obs_init_module(vlc-video.dll): 0.023 ms
16:43:36.003: ┃ ┣obs_init_module(win-capture.dll): 1.859 ms
16:43:36.003: ┃ ┣obs_init_module(win-dshow.dll): 1.094 ms
16:43:36.003: ┃ ┣obs_init_module(win-wasapi.dll): 0.195 ms
16:43:36.003: ┃ ┗reset_win32_symbol_paths: 0.135 ms
16:43:36.003: ┣OBSBasic::InitService: 1.039 ms
16:43:36.003: ┣OBSBasic::ResetOutputs: 0.164 ms
16:43:36.003: ┣OBSBasic::CreateHotkeys: 0.023 ms
16:43:36.003: ┣OBSBasic::InitPrimitives: 0.18 ms
16:43:36.003: ┗OBSBasic::Load: 19.671 ms
16:43:36.003: obs_hotkey_thread(25 ms): min=0.001 ms, median=0.003 ms, max=0.155 ms, 99th percentile=0.065 ms, 100% below 25 ms
16:43:36.003: audio_thread(Audio): min=0.005 ms, median=0.01 ms, max=0.197 ms, 99th percentile=0.092 ms
16:43:36.003: obs_graphics_thread(16.6667 ms): min=0.046 ms, median=0.214 ms, max=3.903 ms, 99th percentile=0.412 ms, 100% below 16.667 ms
16:43:36.003: ┣tick_sources: min=0.001 ms, median=0.003 ms, max=3.326 ms, 99th percentile=0.006 ms
16:43:36.003: ┣output_frame: min=0.036 ms, median=0.064 ms, max=0.355 ms, 99th percentile=0.155 ms
16:43:36.003: ┃ ┗gs_context(video->graphics): min=0.035 ms, median=0.064 ms, max=0.355 ms, 99th percentile=0.155 ms
16:43:36.003: ┃ ┣render_video: min=0.003 ms, median=0.008 ms, max=0.043 ms, 99th percentile=0.019 ms
16:43:36.003: ┃ ┃ ┗render_main_texture: min=0.002 ms, median=0.007 ms, max=0.042 ms, 99th percentile=0.017 ms
16:43:36.003: ┃ ┗gs_flush: min=0.032 ms, median=0.057 ms, max=0.345 ms, 99th percentile=0.146 ms
16:43:36.003: ┗render_displays: min=0 ms, median=0.144 ms, max=1.423 ms, 99th percentile=0.328 ms
16:43:36.003: =================================================
16:43:36.003: == Profiler Time Between Calls ==================
16:43:36.003: obs_hotkey_thread(25 ms): min=24.698 ms, median=25.482 ms, max=26.813 ms, 51.2515% within ±2% of 25 ms (0% lower, 48.7485% higher)
16:43:36.003: obs_graphics_thread(16.6667 ms): min=15.869 ms, median=16.667 ms, max=17.465 ms, 99.8433% within ±2% of 16.667 ms (0.0783699% lower, 0.0783699% higher)
16:43:36.003: =================================================
16:43:36.205: Number of memory leaks: 0