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1109 Views 14 Replies Latest reply: Nov 18, 2012 12:25 AM by simonk83 RSS
tajmon Just Startin'
tajmon
1 posts since
Feb 10, 2010
Currently Being Moderated

Sep 30, 2012 10:28 AM

USB stops working - POD xt & Mac OS X ML

Hello guys,

 

I've got some problems with POD xt (desktop) when it’s connected to my MacBook Air 2012 (with USB 3.0 - not sure if it matters). When I connect the device, turn it on and then change audio output to 'POD xt', it works fine for a while. But after a few secs/mins it stops playing any sounds (from the computer) and any other device connected via USB doesn't work. The same situation happens when I change global audio output for default (internal speakers) and then back to 'POD xt'.

I tried to connect POD to both USB ports - alone, with USB mouse, with USB external drive - but it always stops working when I connect POD and turn it on. When it breaks down USBs ports are 'dead' till machine restart. In system logs console I can find two related entries:

 

30.09.2012 18:28:09,000 kernel[0]: vtd[0] fault: device 0:20:0 reason 0x6 R:0x23a000

30.09.2012 18:28:09,000 kernel[0]: USBF: 261.883 AppleUSBXHCI[0xffffff80d52af000]::UIMRootHubStatusChange - HSE bit set:5 (1)

 

I've tried to reinstall drivers, used the latest version (7.1.9), used the previous version (7.1.7), I've reflashed PODxt device firmware (in Line6 Monkey: USB firmware and Flash memory), and even tried to reset MacBook's PRAM and SMC - without any result.

 

Has anyone had similar problems? Did anyone manage to solve this problem.

  • legnar Just Startin'
    legnar
    11 posts since
    Mar 10, 2007
    Currently Being Moderated
    Oct 8, 2012 11:44 AM (in response to tajmon)
    Re: USB stops working - POD xt & Mac OS X ML

    Hello. I have a very similar problem.

    I bought a new MacBook Pro a month ago, and, as with your Air, it has the latest version of MacOS Mountain Lion, and 3.0 USB ports.

    I recently downloaded all the software necessary to use a PODxt Live, and is a process that I know well because I have the PODxt since 2006, and I have used it already with Mac computers with no problems at all.

     

    But now this is what happens: When I connect the PODxt to the Macbook, I can hear the sounds of the computer as long as I do not activate any other application. Once I activate, say Quicktime or Itunes to hear a track to practice guitar, a couple of minutes after the activation I hear a small "blip!" sound and then I cannot hear anythig from the computer. After this, I have checked the midi settings and the PODxt is gone, it says that there is no device connected to the computer. Line 6 monkey or Gearbox do not recognize the PODxt neither. Even worst is that, once this problem happens, the mouse pad of the Macbook fails (the pointer goes slow or jumps), and the last time the problem happened the computer rebooted itself, and in the startup it said that it had to reboot becouse it registered a fatal error. I did have uninstalled and reinstalled all the software, and I did have the same problem again, so I decided to uninstalled everything until Line 6 or somebody comes with a solution, because I do not want to ruin my computer!

     

    On the other hand, the PODxt remained working well during and after these problems.

     

    I believe there's something with the software of Line 6 that does not work well with the new operative system of Mac. I hope is nothing serious. Or could it be the new 3.0 USB ports???    Perhaps we need a new cable for those ports??

     

    Please let me know if you, or somebody else has a solution. I let you know if I find one.

  • mattias800 Just Startin'
    mattias800
    4 posts since
    Aug 15, 2006
    Currently Being Moderated
    Oct 9, 2012 12:07 PM (in response to tajmon)
    Re: USB stops working - POD xt & Mac OS X ML

    Hello!

     

    I just wanted to say that I am experiencing the EXACT same problem.

    Same error code, same behaviour with keyboard and mouse (not working momentarily after my Line6 UX2 stops working).

     

    I've got a Macbook Pro Retina (= USB 3.0).

    The UX2 is working perfectly with my iMac and older Macbook Pro.

  • l6podxtebay Just Startin'
    l6podxtebay
    18 posts since
    Mar 2, 2007
    Currently Being Moderated
    Oct 10, 2012 4:40 AM (in response to tajmon)
    Re: USB stops working - POD xt & Mac OS X ML

    Anyone with this issue tried using it with a powered hub, external to the macbook? May be useful to help pinpoint whether its a USB 3 issue?

  • lawrenceelcock Just Startin'
    lawrenceelcock
    3 posts since
    Oct 7, 2012
    Currently Being Moderated
    Oct 10, 2012 9:07 AM (in response to tajmon)
    Re: USB stops working - POD xt & Mac OS X ML

    Im also getting this problem with my UX1 on my brand new MacBook pro, can't do anything about it at all, tried everything, any fix yet?

    • mattias800 Just Startin'
      mattias800
      4 posts since
      Aug 15, 2006
      Currently Being Moderated
      Oct 12, 2012 7:03 AM (in response to lawrenceelcock)
      Re: USB stops working - POD xt & Mac OS X ML

      Ok, I've had my logic board replace twice (other issues) and I'm still getting the same error.

       

      Sound is working perfectly for a while, but then suddenly stops.

      For some reason, this always happens when I press play on XLN Audio demos. A flash player on their web page.

      Which is leading me to believe that the Flash VM is initializing the audio interface is some way that is causing it to fail.

       

      And this happens regardless of connecting directly to USB port or to a USB 3.0 hub. I didn't try a USB 2.0 hub, I could do that.

       

      Now, the part that really disturbs me; all USB ports die!

      The USB controller stops working until I restart my computer.

       

      And the IO USB Controller driver in OSX is outputting a console message:

       

       

      1/1/12 7:11:46.000 AM kernel[0]: USBF:1046.276AppleUSBXHCI[0xffffff81c472c000]::UIMRootHubStatusChange - HSE bit set:5 (1)

       

      Now, doing a search on Google for "UIMRootHubStatusChange" yields a few results.

      Doing a search on "UIMRootHubStatusChange HSE bit" returns only one hit, this forum thread.

       

      Some investigative work with Google leads me to believe that this issue is not unique to Line 6 (although I can't confirm if it is the same problem, or only similar symptoms) so I'm not entirely blaming Line 6.

       

      BUT! Line 6, you really need to investigate this! Get your engineers to find out why the hell the USB controller driver stops working!

       

      And that USB troubleshooting guide is of no help whatsoever. This is not a user error in any way, this is a hardware/OS/driver error. And you really should look into it, or soon no Mac users will want to buy your devices.

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