Bug Report BSOD when switching scene or starting OBS in scene with 2 webcams

[StinePlays]

Some times, but not always, my computer gets blue screen as soon as I start OBS Studio on a scene with 2 active cameras, or when I switch to a scene with 2 active cameras.

BSOD message: PAGE_FAULT_IN_NONPAGED_AREA (lvuvc64.sys)

I have 2 Logitech c920's, one is running in 1080p, the other one has a lower resolution. They are running on different USB-controllesr (1 in the back of my comp, 1 in the front).

After I have restarted my computer, OBS starts up on the same scene that failed earlier, and then works fine.

For all I know, it might not be an OBS Studio issue, but this is the only place I have left to ask for help. I have been googling my ass off, and reinstalled the webcam drivers, reinstalled them in compatibility-mode, removed the drivers... lots of things. Any lead that will help me fix this instability is greatly apprecciated!

(The logfiles are before and after a crash, restart and startup of the stream again)

EDIT: OS: Windows 10

 

[Suslik V]

Support in such cases recommends to update camera's driver to Microsoft USB Video Device (manually) - some kind of general device, if understand it right.

 

[StinePlays]

How do I do this exactly? I have only downloaded the driver from the logitech website and installed that, both with and without the logitech software.

 

[Suslik V]

Maybe like for this device: https://forums.logitech.com/t5/Webc...-10-64-bit/m-p/1507595/highlight/true#M124667 or something same (https://forums.logitech.com/t5/forums/searchpage/tab/message?q=lvuvc64.sys).

 

[StinePlays]

Ok, I have updated the driver on one of the cameras to the generic USB driver. I tried both first, but then it wouldnt let me add the cam in 1080p in OBS Studio. So now I have the face-lowres cam running on the USB Video Device driver, and the main camera on the Logitech HD Pro Webcam C920 driver. I will come back here if I get BSOD again. Thanks for your assistance.

 

[StinePlays]

The option of switching to USB Video Device driver did not work so well for me. No bluescreen yet but OBS Studio did not like that driver. When I open scenes with both cameras, it won't display the USB-driver camera most of the time, and very randomly.

 

[MyMultiExtruder]

I have this problem, too. Similar setup. Multiple USB cameras, one in the back, two in a hub on the front, and I'll be adding more. BSOD and restarts my pc on almost every startup. The only thing that helps is if I unplug the cameras before I open OBS. A fix in the next update would be appreciated.

 

[Osiris]

OBS cannot cause BSODs

 

[Hatdatsat]

You say obs cant cause a BSOD but i beg to differ.
I get a crash saying my obs stopped working asking me do i want to send a message yes or no. it doesnt matter what option i choose the but if i choose a windows screen will show up showing that the program is stuck and trying to resolve it and after 2 sec i have a BSOD. This obs crash happens when i have 2 webcams running and 1 of the webcams freezes in obs showing the message i can actually keep going obs is still working just that 1 webcam is than not responding.
im using a logitech c920 and a logitech c922 i believe its mostly the c922 crashing but im not a 100% sure. So its not the moment the camera crashes but when i actually let windows try to close obs when i get the BSOD i have tried closing obs with task manager aswell no luck their either. Its a BSOD memory management. I have tried everything updating my BIOS checked my ram reinstalled windows and so on.

 

[R1CH]

BSODs are caused by faulty hardware or drivers. Programs running in user mode (not inside the OS) cannot directly cause a BSOD, however they may expose bugs or hardware faults in other parts of the system.

 

[Greg Kar]

i have the same problem with 2 logitech C270, i have them on separate usb controllers but i get the same BSOD all the time.

When support says to update camera's driver to windows video driver means BOTH cameras or just one of the two?

 

[dub73]

yep, got the same issues now, C270 and C920. Either I will return the C920 and get different brand or replace the old C270 with a different brand. I read that this solves the direr conflict.

 

[viccallan]

Same issue here.

 

[kurufu]

Issue as reported by logitech:
https://support.logitech.com/en_ch/...multiple-C920-webcams-are-used-simultaneously

Solution:
Here’s how to install native UVC drivers for your webcam:
* Open Device Manager.
* Expand Imaging devices.
* Locate the name of your camera in the list and right-click on it.
* Select Update Driver Software...
* Click Browse my computer for driver software.
* Click Let me pick from a list of device drivers on my computer.
* Check Show compatible hardware, and then select USB Video Device.
* Click Next and follow the on-screen instructions to update the driver.

 

[Razorflak]

Thanks, will try this !
But I'm suprise, cause I try the same think on Xplit (C525 and C615) and I had no issues.
So are we 100% sure its not an OBS issue ? ^^'