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Re: wifi driver or USB might leads suspend/resume failure on thinkpad X1 carbon

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On Mon, Mar 10, 2014 at 3:20 PM, Shuduo Sang <sangshuduo@xxxxxxxxx> wrote:
> On Mon, Mar 10, 2014 at 6:50 PM, Emmanuel Grumbach <egrumbach@xxxxxxxxx> wrote:
>>>>>> Hi,
>>>>>>
>>>>>> On Mon, Mar 10, 2014 at 7:05 AM, Shuduo Sang <sangshuduo@xxxxxxxxx> wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> Sorry for cross posting. I'm suffering an issue my Thinkpad X1 Carbon
>>>>>>> can't resume after suspend recently. I tried many ways including
>>>>>>> latest vanilla kernel, latest stable 3.13 and 3.11 kernel but it still
>>>>>>> happens. I found it will not happen when I turn off WIFI device or USB
>>>>>>> 3.0 in BIOS. So I suspect something need fix in either wifi driver or
>>>>>>> USB side. Since Windows 7 works good so I suppose no hardware issue.
>>>>>>> Anyone has some ideas to fix it or debug it?
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Shuduo
>>>>>>>
>>>>>>
>>>>>> If you disable WiFi only (without touching USB 3.0 in BIOS), it works?
>>>>>> How do you disable WiFi? Rfkill or removing iwlwifi?
>>>>>>
>>>>>
>>>>> I have disabled WIFI device in BIOS, then its suspend/resume works.
>>>>>
>>>>
>>>> Do you have any logs to share?
>>>> I supposed you tested 3.13.6 right?
>>>
>>> Attach dmesg output. If any other log you need, I can capture too.
>>> Actually I tried 3.14-rc6, 3.13.6 and 3.11.10.
>>
>> This looks healthy.
>>
>>     Suspending console(s) (use no_console_suspend to debug)
>>
>> can you use no_console_suspend?
>
> Yes, this log is already output from the kernel I compile with
> no_console_suspend.

Hmm... weird...
Don't know how we can debug this further then...
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