Bug Report Camera Will not Activate in OBS Studio

KyleRoyce

New Member
Hello, I have been using OBS for the past 3 years, starting with Classic and about a year ago moved to Studio. I have never had an issue with OBS nor my webcam. I was broadcasting yesterday and my scene was perfect, however I needed to do a quick restart on my computer. After the restart my scene still shows properly, but the webcam is missing. After extensive testing it seems like OBS Studio is having trouble initializing the webcam - when I start the program, my webcam lights up for a split second, then goes out. I am using the Logitech C920.

I have tried everything other posts on this issue have suggested, from changing the resolution on my webcam to custom and changing back, un/reinstalling obs, un/reinstalling webcam drivers, changing the USB port my webcam is connected to, and switching to a new scene/scene collection (I even backed up and deleted my old scene collection to start with OBS as 'naked' as possible). Nothing seems to do the trick. And the weirdest part is that seemingly nothing triggered this event. It was there -> restart computer -> it was gone. There wasn't even a windows update that could possibly conflict. There must be a simple solution somewhere.

In addition, the webcam works perfectly fine with other applications. I've tested it in OBS Classic, Skype, and Xsplit. As I mentioned, I've now downloaded Xsplit, but would truly like to keep using OBS Studio as I have found it to be superior in user interface and community. Not only that, but I would rather not go through the multiple hour long process of rebuilding my scenes and transitions.

Is there anybody else who is experiencing this issue? Is there a workaround? I honestly need to get this back up and running as soon as possible.

I am uploading the latest log of my current OBS situation. As I said, after a complete un/re of OBS, I completely removed all other elements of the scene and the only thing I am trying to put into this scene is the webcam. Thank you in advance for any help you can offer.

Code:
03:24:46.507: CPU Name: Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz
03:24:46.507: CPU Speed: 3500MHz
03:24:46.507: Physical Cores: 4, Logical Cores: 8
03:24:46.507: Physical Memory: 8121MB Total, 5000MB Free
03:24:46.507: Windows Version: 10.0 Build 15063 (revision: 296; 64-bit)
03:24:46.507: Running as administrator: false
03:24:46.507: Aero is Enabled (Aero is always on for windows 8 and above)
03:24:46.507: Portable mode: false
03:24:46.518: OBS 19.0.3 (64bit, windows)
03:24:46.518: ---------------------------------
03:24:46.519: ---------------------------------
03:24:46.519: audio settings reset:
03:24:46.519:     samples per sec: 44100
03:24:46.519:     speakers:        2
03:24:46.520: ---------------------------------
03:24:46.520: Initializing D3D11...
03:24:46.520: Available Video Adapters:
03:24:46.521:     Adapter 1: NVIDIA GeForce GTX 780
03:24:46.521:       Dedicated VRAM: 3187343360
03:24:46.521:       Shared VRAM:    4257939456
03:24:46.521:       output 1: pos={0, 0}, size={1920, 1080}, attached=true
03:24:46.523: Loading up D3D11 on adapter NVIDIA GeForce GTX 780 (0)
03:24:46.561: D3D11 loaded successfully, feature level used: 45056
03:24:47.163: ---------------------------------
03:24:47.163: video settings reset:
03:24:47.163:     base resolution:   1920x1080
03:24:47.163:     output resolution: 1280x720
03:24:47.163:     downscale filter:  Bicubic
03:24:47.163:     fps:               30/1
03:24:47.163:     format:            NV12
03:24:47.164: Audio monitoring device:
03:24:47.164:     name: Default
03:24:47.164:     id: default
03:24:47.164: ---------------------------------
03:24:47.165: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/chrome_elf.dll' not found, loading of module failed
03:24:47.171: [CoreAudio encoder]: Adding CoreAudio AAC encoder
03:24:47.172: [AMF] Encountered Exception during AMF initialization: Unable to load 'amfrt64.dll', error code 126.
03:24:47.172: Failed to initialize module 'enc-amf.dll'
03:24:47.181: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libcef.dll' not found, loading of module failed
03:24:47.181: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libEGL.dll' not found, loading of module failed
03:24:47.182: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libGLESv2.dll' not found, loading of module failed
03:24:47.182: Failed to load 'en-US' text for module: 'obs-browser.dll'
03:24:47.182: [browser_source: 'Version: 1.29.0']
03:24:47.184: NVENC supported
03:24:47.219: Couldn't find VLC installation, VLC video source disabled
03:24:47.223: No blackmagic support
03:24:47.252: ---------------------------------
03:24:47.252:   Loaded Modules:
03:24:47.252:     win-wasapi.dll
03:24:47.252:     win-mf.dll
03:24:47.252:     win-dshow.dll
03:24:47.252:     win-decklink.dll
03:24:47.252:     win-capture.dll
03:24:47.252:     vlc-video.dll
03:24:47.252:     text-freetype2.dll
03:24:47.252:     rtmp-services.dll
03:24:47.252:     obs-x264.dll
03:24:47.252:     obs-vst.dll
03:24:47.252:     obs-transitions.dll
03:24:47.252:     obs-text.dll
03:24:47.252:     obs-qsv11.dll
03:24:47.252:     obs-outputs.dll
03:24:47.252:     obs-filters.dll
03:24:47.252:     obs-ffmpeg.dll
03:24:47.252:     obs-browser.dll
03:24:47.252:     image-source.dll
03:24:47.252:     frontend-tools.dll
03:24:47.252:     enc-amf.dll
03:24:47.252:     coreaudio-encoder.dll
03:24:47.252: ==== Startup complete ===============================================
03:24:47.259: Service '' not found
03:24:47.260: All scene data cleared
03:24:47.260: ------------------------------------------------
03:24:47.290: WASAPI: Device 'SAMSUNG-4 (NVIDIA High Definition Audio)' initialized
03:24:47.356: WASAPI: Device 'Microphone (HD Pro Webcam C920)' initialized
03:24:47.359: Switched to scene 'Scene'
03:24:47.359: ------------------------------------------------
03:24:47.359: Loaded scenes:
03:24:47.359: - scene 'Scene':
03:24:47.359:     - source: 'Video Capture Device 2' (dshow_input)
03:24:47.359: ------------------------------------------------
03:24:47.360: Video Capture Device 2: DecodeDeviceId failed
03:24:47.361: Video Capture Device 2: Video configuration failed
03:24:47.470: adding 23 milliseconds of audio buffering, total audio buffering is now 23 milliseconds
03:24:48.290: adding 23 milliseconds of audio buffering, total audio buffering is now 46 milliseconds
03:24:49.856: ---------------------------------
03:24:49.856: [DShow Device: 'Video Capture Device 2'] settings updated:
03:24:49.856:     video device: Logitech HD Pro Webcam C920
03:24:49.856:     video path: \\?\usb#vid_046d&pid_082d&mi_00#6&1b096b23&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{bbefb6c7-2fc4-4139-bb8b-a58bba724083}
03:24:49.856:     resolution: 640x480
03:24:49.856:     fps: 30.00 (interval: 333333)
03:24:49.856:     format: I420
03:25:23.477: ==== Shutting down ==================================================
03:25:23.480: Switched to scene '(null)'
03:25:23.483: WASAPI: Device 'SAMSUNG-4 (NVIDIA High Definition Audio)' Terminated
03:25:23.487: WASAPI: Device 'Microphone (HD Pro Webcam C920)' Terminated
03:25:23.489: All scene data cleared
03:25:23.489: ------------------------------------------------
03:25:23.533: Freeing OBS context data
03:25:23.554: == Profiler Results =============================
03:25:23.554: run_program_init: 924.965 ms
03:25:23.554:  ┣OBSApp::AppInit: 12.538 ms
03:25:23.555:  ┃ ┗OBSApp::InitLocale: 1.859 ms
03:25:23.555:  ┗OBSApp::OBSInit: 907.477 ms
03:25:23.555:    ┣obs_startup: 1.18 ms
03:25:23.555:    ┗OBSBasic::OBSInit: 878.446 ms
03:25:23.555:      ┣OBSBasic::InitBasicConfig: 0.461 ms
03:25:23.555:      ┣OBSBasic::ResetAudio: 0.213 ms
03:25:23.555:      ┣OBSBasic::ResetVideo: 645.155 ms
03:25:23.555:      ┣OBSBasic::InitOBSCallbacks: 0.006 ms
03:25:23.555:      ┣OBSBasic::InitHotkeys: 0.064 ms
03:25:23.555:      ┣obs_load_all_modules: 87.668 ms
03:25:23.555:      ┃ ┣obs_init_module(coreaudio-encoder.dll): 5.771 ms
03:25:23.555:      ┃ ┣obs_init_module(enc-amf.dll): 0.259 ms
03:25:23.555:      ┃ ┣obs_init_module(frontend-tools.dll): 1.675 ms
03:25:23.555:      ┃ ┣obs_init_module(image-source.dll): 0.003 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-browser.dll): 0.051 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-ffmpeg.dll): 0.514 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-filters.dll): 0.011 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-outputs.dll): 0.004 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-qsv11.dll): 27.935 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-text.dll): 0.222 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-transitions.dll): 0.006 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-vst.dll): 0.001 ms
03:25:23.555:      ┃ ┣obs_init_module(obs-x264.dll): 0.001 ms
03:25:23.555:      ┃ ┣obs_init_module(rtmp-services.dll): 0.351 ms
03:25:23.555:      ┃ ┣obs_init_module(text-freetype2.dll): 0.041 ms
03:25:23.555:      ┃ ┣obs_init_module(vlc-video.dll): 0.038 ms
03:25:23.555:      ┃ ┣obs_init_module(win-capture.dll): 0.056 ms
03:25:23.555:      ┃ ┣obs_init_module(win-decklink.dll): 2.824 ms
03:25:23.555:      ┃ ┣obs_init_module(win-dshow.dll): 1.212 ms
03:25:23.555:      ┃ ┣obs_init_module(win-mf.dll): 24.105 ms
03:25:23.555:      ┃ ┣obs_init_module(win-wasapi.dll): 0.004 ms
03:25:23.555:      ┃ ┗reset_win32_symbol_paths: 0.086 ms
03:25:23.555:      ┣OBSBasic::ResetOutputs: 6.288 ms
03:25:23.555:      ┣OBSBasic::CreateHotkeys: 0.034 ms
03:25:23.555:      ┣OBSBasic::InitService: 0.108 ms
03:25:23.555:      ┣OBSBasic::InitPrimitives: 0.233 ms
03:25:23.555:      ┗OBSBasic::Load: 99.569 ms
03:25:23.555: obs_hotkey_thread(25 ms): min=0.001 ms, median=0.008 ms, max=0.906 ms, 99th percentile=0.104 ms, 100% below 25 ms
03:25:23.555: audio_thread(Audio): min=0 ms, median=0.082 ms, max=0.259 ms, 99th percentile=0.11 ms
03:25:23.555: obs_video_thread(33.3333 ms): min=0.301 ms, median=1.546 ms, max=2.935 ms, 99th percentile=2.414 ms, 100% below 33.333 ms
03:25:23.555:  ┣tick_sources: min=0.001 ms, median=0.011 ms, max=0.076 ms, 99th percentile=0.017 ms
03:25:23.555:  ┣render_displays: min=0 ms, median=0.256 ms, max=1.717 ms, 99th percentile=1.027 ms
03:25:23.555:  ┗output_frame: min=0.296 ms, median=1.229 ms, max=1.959 ms, 99th percentile=1.578 ms
03:25:23.555:    ┣gs_context(video->graphics): min=0.131 ms, median=0.762 ms, max=1.507 ms, 99th percentile=1.088 ms
03:25:23.555:    ┃ ┣render_video: min=0.017 ms, median=0.138 ms, max=0.985 ms, 99th percentile=0.63 ms
03:25:23.555:    ┃ ┃ ┣render_main_texture: min=0.002 ms, median=0.011 ms, max=0.114 ms, 99th percentile=0.021 ms
03:25:23.555:    ┃ ┃ ┣render_output_texture: min=0.002 ms, median=0.052 ms, max=0.199 ms, 99th percentile=0.109 ms
03:25:23.555:    ┃ ┃ ┣render_convert_texture: min=0.001 ms, median=0.051 ms, max=0.304 ms, 99th percentile=0.097 ms
03:25:23.555:    ┃ ┃ ┗stage_output_texture: min=0 ms, median=0.014 ms, max=0.825 ms, 99th percentile=0.489 ms
03:25:23.555:    ┃ ┣download_frame: min=0 ms, median=0.004 ms, max=0.774 ms, 99th percentile=0.633 ms
03:25:23.555:    ┃ ┗gs_flush: min=0.023 ms, median=0.598 ms, max=1.357 ms, 99th percentile=0.877 ms
03:25:23.555:    ┗output_video_data: min=0.165 ms, median=0.454 ms, max=0.634 ms, 99th percentile=0.572 ms
03:25:23.555: video_thread(video): min=0.001 ms, median=0.003 ms, max=0.007 ms, 99th percentile=0.004 ms
03:25:23.555: =================================================
03:25:23.555: == Profiler Time Between Calls ==================
03:25:23.555: obs_hotkey_thread(25 ms): min=24.949 ms, median=25.076 ms, max=26.51 ms, 83.1744% within ±2% of 25 ms (0% lower, 16.8256% higher)
03:25:23.555: obs_video_thread(33.3333 ms): min=33.303 ms, median=33.333 ms, max=33.365 ms, 100% within ±2% of 33.333 ms (0% lower, 0% higher)
03:25:23.555: =================================================
03:25:23.571: Number of memory leaks: 1
 
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