> > This is very puzzling, and I don't see any reason for the behavior > you're describing. The only thing I can think of is that somehow the > audio card gets into a bad state which persists until it is reset. > > You can test this by using the attached usbreset program. Start by > triggering the interference, and then stop using both cards (don't > stream any TV and don't stream any audio). In fact, to be safe, you > should unload both drivers. > > While the cards are idle, use the program to reset the audio card > (you'll have to run it as root). You just tell it the name of the USB > device to reset. For example, according to your dmesg log the audio > card was device 3 on bus 1, so you would do: > > sudo ./usbreset /dev/bus/usb/001/003 > > Then reload the audio driver, try streaming some normal ALSA audio, > and see if the interference has gone away. > > Alan Stern > This usbreset seems to work, even without reloading the audio driver. I have to do some further testing (read - day to day use coupled with stress testing) to be 100% sure. Unfortunately I'm going away for a couple of weeks now and I can't take my devices with me. I'll get back to you ASAP after further testing. Your help is much appreciated, and I thank you very much. Pedro -- 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
