Re: [RFC RESEND PATCH 0/1] USB EHCI: repeated resets on full and low speed devices

[Alan Stern]

On Tue, Sep 01, 2020 at 09:15:46AM -0700, Khalid Aziz wrote:
> On 8/31/20 8:31 PM, Alan Stern wrote:
> > Can you collect a usbmon trace showing an example of this problem?
> > 
> 
> I have attached usbmon traces for when USB hub with keyboards and mouse
> is plugged into USB 2.0 port and when it is plugged into the NEC USB 3.0
> port.

The usbmon traces show lots of errors, but no Clear-TT events.  The 
large number of errors suggests that you've got a hardware problem; 
either a bad hub or bad USB connections.

Alan Stern