Re: [LAU] reducing xruns (System configuration)

On 18.07.2018 23:20, Will Godfrey wrote:
> Something nobody seems to have mentioned is the command lsusb.
> This will show you what is hanging on which bus. Ideally you want to try
> different sockets until you find one that has nothing else on it.

> [..]

> I don't know the sound card you are using, or how old it is, or even how well
> it's firmware supports USB2, but USB2 speeds on modern cards can easily manage
> 64/2 at 48k. Indeed, mine can (just) manage 16/2 at 48k.

Thanks Will, that makes sense.

Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 8087:07dc Intel Corp.
Bus 003 Device 021: ID 04b4:beef Cypress Semiconductor Corp.
Bus 003 Device 007: ID 046a:b090 Cherry GmbH
Bus 003 Device 008: ID 0424:4060 Standard Microsystems Corp. Ultra Fast
Media Reader
Bus 003 Device 005: ID 0424:2640 Standard Microsystems Corp. USB 2.0 Hub
Bus 003 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 003 Device 006: ID 0bda:5719 Realtek Semiconductor Corp.
Bus 003 Device 002: ID 08bb:29c2 Texas Instruments PCM2902C Audio CODEC
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I assume that the bus can only be changed by physically attaching the
devices to different ports. Is that right? The audio interface (Texas
Instruments, A Behringer mixer) already is plugged in its own USB port,
I might see if a different port changes something.
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Received on Thu Jul 19 16:15:01 2018