[linux-audio-user] noise from USB printer

[Dave Phillips]

Fons Adriaensen wrote:

>>Noise is there whether the printer is turned on or not. It disappears 
>>only when one or another of the cables are disconnected.
>>    
>>
>
>Then it's probably not related to interrupts etc.
>
>Are you sure the ground connections of your audio cable and
>amplifier are OK ?
>
Sure, they've been fine, I've had no similar trouble until I added this 
printer (recommended by linuxprinting.org).

I haven't tried switching the M-Audio card slot yet, it's my next move.

Best,

dp