Question / Help Webcam Not showing on Startup

[dynomation]

So, i have my Logitech C920 as a source in a scene but when I start up OBS Studio, the video from the source is not visible. When I right click the source and go into properties, it suddenly shows up but not before I do that. This happens regardless of if I start OBS Studio on a scene with or without the webcam.

https://gist.github.com/36b6108ca6cfeabc5ec8cf616389056a

 

[Suslik V]

Try to setup all this stuff manually, in 'Video Capture Device' properties:

resolution: 640x480
fps: 30.00
video format: I420

And make sure, that your cam is not disabled by power saving option of the system itself.

Any changes?

 

[dynomation]

Still no changes. The webcam light is on so it is active but its not being received (it was this way before also).

https://gist.github.com/f96fdf48ab3920033345cc039f95161b

 

[Suslik V]

A lot of users uses C920. Even someone of the developers has an hardware example of this device.

You may try to run 32bit executable instead of 64. Make portable Studio in different folder: https://obsproject.com/forum/resources/obs-and-obs-studio-portable-mode-on-windows.359/
And don't forget to add OBS Studio folder to the trust list of your security software.

Does it work?

 

[dynomation]

Yea it works in portable mode thanks. Also, i need to run 64 bit because my capture card isn't recognized in 32

 

[dynomation]

Ok the real problem was apparently the scene collection. When i created a new scene collection in portable, because it did so by default, the webcam worked but when i switched to the old one, it didn't. Weird.

 

[Suslik V]

Wow, never seen this bug before. Your scene collection was reused since v0.12.x or so?

 

[Zamiel]

I'm having the exact same bug, it is my scene that is causing it. How can I upload my scenes file here so that the developers can replicate the bug for debugging purposes?

 

[Zamiel]

Bump.

 

[Zamiel]

Bump x2.

 

[Zamiel]

Bump x3. Is there any way that I can upload my scene file that reproduces the bug so that the devs can take a look?

 

[RytoEX]

Bump x3. Is there any way that I can upload my scene file that reproduces the bug so that the devs can take a look?

Click the "Upload a File" button seen below the posting box. Choose your scene file. Submit the post.

 

[Zamiel]

Where is the scene file located and what is the name of the file?

 

[Suslik V]

Where is the scene file located and what is the name of the file?

You can find some info there: https://obsproject.com/forum/resources/obs-and-obs-studio-portable-mode-on-windows.359/
But who cares... about your bug.
Profiles can contain streaming key data - reset your streamkey or delete this info from the files you want to upload.

 

[RytoEX]

OBS Studio stores its user data in "%AppData%\obs-studio". From there, scene data is stored in JSON files in the "basic\scenes" directory.

Since you said that the problem only occurs in your old scene and not your new scene, the scene data is probably what you want to look at. We shouldn't need to see the profile data, but since @Suslik V mentioned it...

Profile data is located in "basic\profiles". As @Suslik V said, OBS Studio profiles can contain sensitive data such as your streaming key, so be sure to remove that before uploading profile data.

 

[Zamiel]

Here is the bugged scene:

http://pastebin.com/6yzxLF2n

To be perfectly clear:
Upon first startup, if this scene is selected, the webcam will NOT show up. If you right click Webcam source in the "Sources" box and select properties, THEN the webcam will show up and be selectable.

The webcam is a Logitech HD C310.

This SHOULD be reproducible from a virgin OBS Studio with no custom profile settings.

Let me know if this bug is not reproducible, and I will post my specific profile files.

 

[Zamiel]

Was anybody able to replicate this bug?

 

[RytoEX]

I don't have a webcam, let alone the specific model you're using, so I can't really test it.

 

[Brainyac]

I got the same problem but no response from any mods/admins yet. (Logitech C920)

Also tried some things but didn't find a workaround yet. Just going into the Settings of the cam and click ok.

 

[Suslik V]

I got the same problem but no response... (Logitech C920)
...
Also tried some things but didn't find a workaround yet. Just going into the Settings of the cam and click ok.

Your thread (New Webcam starts deactivated) points to different error but maybe has same behavior.