This is messing with my mind. I've been desperately trying to find a pattern here. Now it appears the interference only happens if I unplug and replug the DVB-T adapter. Anyway, I have created an attachment to the original bug report with usbmon logs from the audio card. One of them shows normal operation, the other shows the interference I'm talking about. A third one (called interference2) is probably more useful - it shows how the interference starts when I disconnect and reconnect the DVB adapter. To reply to Alan's question, sometimes when I unload and reload the module the interference starts, sometimes it doesn't. Like I said, seems completely random! http://bugzilla.kernel.org/show_bug.cgi?id=15580 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html