On Thu, 7 Mar 2013, Jenya Y wrote: > // sorry for double-post I was advised to use 'reply to all' and wasn't > sure if the prev. message was forwarded to linux-usb > > Thank you for the reply. > I'd be bold enough to categorize this as a problem, since the usb hub > doesn't work. > It could be 'expected' if it were a RC version of the kernel but the > problem exists since the version 3.8 > (don't want to go back because previous versions had problems with my > intuos tablet) > > Should I be investigating this issue myself? Since the hub is working > correctly with previous kernels, I assume that the updated kernel module > is to blame not the hub. > > > Here is addiotional info, not sure if that's useful.... It isn't. What _would_ be helpful is if you do what I suggested earlier: Build a kernel with CONFIG_USB_DEBUG enabled and post the output from the dmesg command showing what happens during boot. Alan Stern > On 03/07/2013 05:07 PM, Alan Stern wrote: > > 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 > > > > > On 03/07/2013 07:09 PM, Alan Stern wrote: > > Please use Reply-To-All, so that your message gets sent to the mailing > > list as well as to me. > > > > On Thu, 7 Mar 2013, Jenya Y wrote: > > > >> Thank you Alan for the reply. > >> I'd be bold enough to categorize this as a problem, since the usb hub > >> doesn't work. > >> It could be 'expected' if it were a RC version of the kernel but the > >> problem exists since the version 3.8 > >> (don't want to go back because previous versions had problems with my > >> intuos tablet) > >> > >> Should I be investigating this issue myself? Since the hub is working > >> correctly with previous kernels, I assume that the updated kernel module > >> is to blame not the hub. > > Yes, you should investigate the problem. If you don't, nobody else > > will. > > > > 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
