problems with 3 cameras

[GoogleCodeExporter]

What steps will reproduce the problem?

1.
I have 3 cameras, same vendor.I am developing under VB.net
2.
I began using 2 cameras example and works fine. Very good I must say.(in C# and 
in VB.net. I can select different resolutions for each. 
3.
I added a third camera but I have problems. The system is not reliable.

What is the expected output? What do you see instead?

Well , the expected output is 3 cameras view, but system some times shows the 3 
cameras and other times only 2 at the same time. The last camera to connect 
hold the message "video connecting" and videocapture device screen is grey.
But another times, the 3 are connected and working fine. I though it was power 
supply issue but I use 2 USB hubs ,one with power supply but have the same 
problem.
I am lost


What version of the product are you using?


I am using the last version 2.2.5 . Vb.net VS2012. OS Win8.1


Please provide any additional information below.

Original issue reported on code.google.com by datagri...@gmail.com on 21 Jan 2015 at 4:54

[GoogleCodeExporter]

You are lucky that you have at least 2 cameras working of the same vendor. Some 
cameras of the same model simply refuse to work together (drivers issue maybe).

Original comment by andrew.k...@gmail.com on 22 Jan 2015 at 10:22

• Changed state: Frozen

[GoogleCodeExporter]

Thanks for the response.
It is an USB bandwitdh issue. If I connect the 3 cameras in different USB
roots , I have not problems .(well I discovered that tonigh and I must
investigate/test a few more to know if is a reliable situation )
With 2 cameras I have not problem  using a USB hub (at the beguinning I had
when I used USB hub from China , but with a Trust brand , I have not
problems ) but I "had" with 3 . But like I told you , using 3 different USB
ports it is OK (I think )

Sincerely,
Santiago

2015-01-22 9:22 GMT-01:00 <aforge@googlecode.com>:

Original comment by datagri...@gmail.com on 22 Jan 2015 at 10:31