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SubjectRe: [b43] usb device disconnects automatically after 1s
From
2011/3/16 Mihai Donțu <mihai.dontu@gmail.com>:
> Added linux-usb and linux-wireless to CC.
>
> On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
>> Hi,
>>
>> I have just upgraded to 2.6.38 and discovered that I can't use my wireless
>> device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth led lights
>> and after a second it turns off by itself. In dmesg I'm seeing the
>> following:
>>
>> [   88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and
>> address 5
>> [   88.782330] usb 1-2.2: USB disconnect, address 5
>>
>> I switched to 2.6.37 until I'll have some time to bisect this. In the mean
>> time I have attached the output of lspci, interrupts and dmesg.

I suspect it's WMI related. What is your machine?

Please check:
https://bugzilla.kernel.org/show_bug.cgi?id=31002
http://comments.gmane.org/gmane.linux.acpi.devel/49577

I can't help you more, I just noticed such a issue reported on ACPI
ML, you have to dig into this yourself (or someone else may help you).

--
Rafał
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