4-camera limitation??? X3 wont display a 5th webcam

I have five identical Logitech USB webcams plugged into the PC running Windows7 (each into their own USB port). X3 recognizes all five cameras in the camera options list, and clicking the "Setup" of each one shows the live video feed.

However, when I add 5 camera frames to the main acquisition window, only 4 will display video. The 5th one shows up blank with "NO VIDEO" in the box. If I "Un-use" one of them from the list, the 5th one will appear. So its clearly a limitation of no more than 4 cameras. Is this a Windows limitation or a software limitation? I was under the impression there was no limit to how many cameras you could run, provided I have stable USB inputs for each.

Hi,

this is not limitation of Dewesoft because we have tested it also with 8 cameras.

Sometimes the camera driver has limitation of how many cameras can work simultaneously.

You can also try running all cameras using VLC player and if also in that software won't work, then the driver must be the issue.

In this case you can try updating the driver. Sometimes it is also possible to use the Windows default driver.

Can I ask which cameras are you using?

Hi

Thanks for the reply.

I'm unable to install VLC player on our PC's due to corporate policies, and I've always assumed the cameras are operating on the default Windows drivers because there's no other camera add-on software installed; they've been plug n' play for the most part.

The webcams I'm running are a combination of Logitech C920 and C922x cameras

Thank you.

~EDIT~

I was able to do more troubleshooting.

It appears the software will recognize all cameras accept the last one, e.g. with 5 cameras plugged in, Dewesoft will recognize cameras 1-4, 5 will be blank. With 4 cameras plugged in, Dewesoft will recognize cameras 1-3, 4 will be blank.

Furthermore, if we have 5 cameras plugged in and Un-use one of them, camera 5 will become active.

Hi,

I would suggest checking which drivers are used for the camera. Sometimes it is possible to manually choose different drivers.

If the remote connection is possible, we can also analyse this via TeamViewer.

I ended up resolving the issue by turning the resolution down on all the cameras. Probably a bandwidth limitation in the USB bus on this particular PC.