Bug Report Multiple Dshow Inputs, only some appear

J

Jaxas

New Member
Hello, I'm running the latest OBS Studio (0.14.1), and I'm having an issue with streaming.

I have a capture card ("Diamond GC500 HD Game Capture"), 2 USB webcams (1 "Rocketfish 2MP AF Webcam" & 1 "Logitech HD Webcam C525"), and 1 built-in laptop webcam ("Integrated Camera", it's a Thinkpad T430).

The issue I'm running into (in both Studio and original OBS) is that they each work separately (when only 1 of them is plugged in) and sometimes they work when only some of them are in (I've had all 3 webcams in there running at once before), but when I'm trying to run all of them then some of the inputs just don't work.

They're still placed into the stream, in the Red-Outline-But-Nothing-Inside version.

If I could get some help with this, that would be nice; thanks!

Oh, and I've had at least 2 of the webcams work before when the game was being captured by an Elgato, but only very rarely.

Also, here's the log file: https://gist.github.com/8a498c2fba558b730de24a62cb9cb9c8
 
J

Jaxas

New Member
Harold does indeed seem to know best, lol.

Also, I'm sure that they aren't in use by other applications, and I believe they're properly configured (they work separately most of the time, just not all together at once), but I have no idea how I'd make sure about power/bandwidth bottlenecks.

My laptop's USB ports are:
x2: USB 3.0 (Can't tell you what version/model though, and I know that matters for a handful of devices)
x2: USB 2.0


What I'm trying to do exactly is record/stream game tournaments; the GC500 captures the game itself, while the webcams are supposed to be for player cams (the 2 USB ones) and the commentator cam (the built-in one).

I've had the setup working before one time, but after that day it stopped working (with no changes to any settings/etc, even made sure they were in the same USB ports). It's also worked fairly reliably with an Elgato instead of the GC500.

Oh, and the GC500 + webcams other than the built in one has had an issue with OBS (non-studio) in the past; namely sometimes when trying to add both to a single scene it freezes OBS to the point where task manager's "kill process tree" won't actually close it, and it forces a restart to even close.

Luckily that's not happening anymore, but I had that on a few different computers...

We can work with just the commentary cam, but it'd be really nice to be able to have player cams reliably as well.

Anyways, let me know what other information/logs/etc I can provide to help; thanks!
 
J

Jaxas

New Member
Sorry to bump this with no new activity, but I have some new information.

After messing with stuff for a while it looks like it only ever fails when using the GC500 capture card; I can reliably have all 3 webcams up and running at the same time as long as OBS (or OBS Studio) doesn't try to initialize the capture card (plugged in or not).

Other than simply getting a new capture card (unfortunately something I don't have the money for...), does anyone have any advice for what I should do in this scenario? Things to try, stuff like that? (Also, any way I can gather more info than what's posted here + the log above?)

Thanks!
 
Suslik V

Suslik V

Active Member
Make all 3 cams works fine, then add new 'Video Capture Device' (select your capture card) and post log.

Try to reduce resolution of each cam (set it to minimum), try to change Video Format (like YUY2) for all cams.
 
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