On Thu, 7 Mar 2013, Jenya Y wrote: > > UPDATE correction to the name of the device Apple Cinema HD Display ( > A1082) > > Since kernel 3.8 Apple Cinema Display's usb hub spits errors randomly at > boot. (their count seems to be random, but the type of the error is > always the same) > > As soon as I disconnect the usb extension cable the errors are gone. > > > Errors > journalctl > usb 1-2.2: can't set config #1, error -71 > hub 2-2:1.0: hub_port_status failed (err = -71) > hub 2-2:1.0: hub_port_status failed (err = -71) > hub 2-2:1.0: hub_port_status failed (err = -71) > hub 2-2:1.0: hub_port_status failed (err = -71) > ..... Is this a problem or is it the expected behavior? If you want to investigate further, build a kernel with CONFIG_USB_DEBUG enabled and post the output from the dmesg command showing what happens during boot. Alan Stern -- 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