[arch-general] Not Enough Bandwidth

[pete]

Hello folks .

one of my rare visits to the mailing list 

I am having a small problem   with my machine 

I recently Purchased an USB3 PCEe card with 2 usb3 ports on it

03:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host
Controller (rev 04)

when i first installed this card it worked just fine then  2 days ago
the Kernel was updated  and i started getting  

[   85.536166] usb 8-2: Not enough bandwidth for new device state.
[   85.536177] usb 8-2: Not enough bandwidth for altsetting 1
[   85.536179] usb 8-2: 1:1: usb_set_interface failed (-28)
[   85.536957] usb 8-2: Not enough bandwidth for new device state.
[   85.536972] usb 8-2: Not enough bandwidth for altsetting 1
[   85.536975] usb 8-2: 1:1: usb_set_interface failed (-28)
[   85.537628] usb 8-2: Not enough bandwidth for new device state.
[   85.537640] usb 8-2: Not enough bandwidth for altsetting 1
[   85.537643] usb 8-2: 1:1: usb_set_interface failed (-28)

i am using the new usb ports on 2 external usb sound cards 

Bus 008 Device 003: ID 0d8c:0102 C-Media Electronics, Inc. CM106 Like
Sound Device
Bus 008 Device 002: ID 0d8c:0102 C-Media Electronics, Inc. CM106 Like
Sound Device
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I have found that if i unplug the sound card plugged into 
Bus 008 Device 002 prior to starting KDE/Plasma i do not get the error
if i switch the cards around it is still on the same port  

the machine is up to date updated every evening with "pacman -Syu"

Linux ### 4.18.16-arch1-1-ARCH #1 SMP PREEMPT Sat Oct 20 22:06:45 UTC
2018 x86_64 GNU/Linux

it does not seem to effect the machine performance but just the sheer
number of lines of it is alarming 

Ideas help please .

Thanks Pete .