Re: [BUG] - USB3 bluetooth device not working properly?

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Adding Linux-USB back..

On Tue, Aug 21, 2012 at 7:31 PM, Andiry Xu <andiry@xxxxxxxxx> wrote:
> On Mon, Aug 20, 2012 at 8:17 PM, Miroslav Sabljic
> <miroslav.sabljic@xxxxxxx> wrote:
>> On 08/19/2012 03:29 PM, Andiry Xu wrote:
>>
>>> Thanks. The dmesg indicates the device does not respond the address
>>> device command. The host reports a USB transaction error, that is, the
>>> host did not receive a valid response from the device. Sounds like the
>>> device simply does not work well with the host.
>>
>>
>> Hmm, I'm not sure what exactly does this mean? Do you think it is a bug or
>> something else? Device works normally if I disable usb3 support in BIOS then
>> xhci module isn't loaded and device works without any problem. Also when I
>> get these kind of errors in dmesg device doesn't work and in that case if I
>> reboot in Win7 and back in Linux device works normally again and without
>> these erros in dmesg but if I shutdown from Linux and boot to Linux again,
>> device stops working like before. This looks to me like somehow Linux
>> doesn't properly 'shutdown' device and something gets messed up so it
>> doesn't work on next boot. I don't know how to explain this behaviour
>> better. :(
>>
>> Can this be fixed somehow?
>
> Not sure. it's hard to debug via software side because software seems
> does not do anything wrong. If you disable USB3 support in BIOS the
> ports are handled by EHCI instead. Perhaps there is something wrong
> with the Intel Panther Point EHCI-xHCI hand over mechanism. I don't
> have such a platform and I cannot tell. Maybe Sarah can give you some
> suggestions when she get back from vacation.
>
> Thanks,
> Andiry
>
>>
>> BTW, I found few threads on this mailing list about different usb3 devices
>> with devices not accepting address errors.
>>
>>
>> --
>> Best regards,
>>   Miroslav
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