Issue with supported USB 3.0 Host-Controller RRS feed

  • Question

  • Hey

    since two days I try to figure out whats going wrong with my Kinect v2 setup.

    Luckily my Laptop (Lenovo IdeaPad y570) has a build in Renesas USB 3.0 Host Controller... which according to this Thread is supported by the Kinect v2.

    According to my Device-Manager nothing else is connected to the relevant PCI-Express port on which the USB 3.0 Controller is based on
    (In the screenshot hidden devices are shown)
    [can't embed links or pictures until verified?]

    I can't figure out why the kinect configuration verifier still gives me "insufficient bandwidth" error. 
    According to this thread, I should try to disconnect any other devices sharing the same resources.. but there is none :(

    Any suggestions what else i could try to solve this problem?

    Thanks in advance for any advice..


    • Edited by Imm0l82 Friday, January 2, 2015 7:15 PM update
    Friday, January 2, 2015 7:14 PM

All replies

  • Is the chipset connected to a PCI Express 2.0 bus? I am not sure of the age of the system, but if this came out before the USB3 spec was finalized, we found that some manufacturers had wired USB3 to the PCI Express slot which is not capable of transmitting a sustained 5.0GB/s required for USB3. I have a similar issue with a Dell XPS 1702 system.

    Carmine Sirignano - MSFT

    Saturday, January 3, 2015 1:10 AM
  • Hey Carmine

    thanks for your reply!
    I double checked, and the PCI Express slot the internal USB 3.0 Controller is (solely) connected to is 2nd Generation and supports 5GB/s.

    Corresponding screenshots can be found here:

    I don't know what limits the "Current Link Speed" of the Bus to 2.5GB/s, as you can see on the right hand side of the screenshot?!

    As obviously all theoretical reqirements are met, do you have any idea what i could try to get the kinect to work?
    Yesterday evening I got the led's of the kinect to flash for the first time..
    but instead of being constantly shown as "connected" (as before) in the Configuration Verifier it suddenly lost and ganied connection every few seconds.


    • Edited by Imm0l82 Saturday, January 3, 2015 8:03 PM
    Saturday, January 3, 2015 7:54 PM
  • + could you please verify my account so i'm able to upload pictures directl to the thread?

    Saturday, January 3, 2015 7:54 PM
  • The chipset in the screenshot is an NEC version of the Renesas chipset. There are mixed results using that chipset. Additionally, given the system is Sandy Bridge, you may be experiencing the same thing I noted. Does your device manager list it as:

    The 0100 may display as 0960 as well that we know work.

    Given that you are only negotiating 2.5GB/s seems to indicate it is not working as expected. Do you have access to another system, such as Surface 3 and do the same test?

    I can't seem to run that tool you have used on my machine without crashing to give you a screenshot. This is the way to determine the link speed using Microsoft tools:

    Carmine Sirignano - MSFT

    Monday, January 5, 2015 8:10 PM