[ltp] Hotkeys not working after suspend/resume to disk (X220t)

[Pedro Ribeiro]

Ok I'll give it a shot. I'm pretty sure that it's the same issue, as I
also use tuxonice for hibernation.

Regards,
Pedro

On 14/08/2011, Milan Pl=C5=BE=C3=ADk <milan.plzik@gmail.com> wrote:
> On 08/14/2011 12:18 PM, Pedro Ribeiro wrote:
>> Hi,
>
>    Hello,
>
>>
>> I have the same problem with a T400 with kernel 3.0.
>>
>> After hibernating, the thinkvantage and Fn keys stopped working. I
>> just tried suspend to RAM as you said and indeed the keys start
>> working again.
>>
>> I didn't have this problem with 2.6.39. Can you please check if the
>> older kernel has this issue?
>
>    This morning I ran few more tests, with following results:
>
>   - vanilla 3.0.1 -- hibernate/resume doesn't affect thinkpad hotkeys
>   - vanilla 3.0.1 + tuxonice patch -- thinkpad hotkeys stop working
>
>    which (at least in my case) yields the culprit -- tuxonice patch.
>
>    Unfortunately, I don't have enough time to run tests with 2.6.39 (and
> probably won't have for next two weeks).
>>
>> If it has then it's a new bug.
>
>    So far I filed a bugreport at
> http://bugzilla.tuxonice.net/show_bug.cgi?id=3D475 . I did not manage to
> get vanilla kernel into the state without working hotkeys, so this seems
> to be appropriate (again, in my case). You might give a try to vanilla
> 3.0.1 to see whether we are takling about the same issue.
>
>>
>> Regards,
>> Pedro
>
> 	Milan
>
>>
>> On 13/08/2011, Milan Pl=C5=BE=C3=ADk<milan.plzik@gmail.com>  wrote:
>>>    Hello,
>>>
>>>    I'm tring to configure X220 tablet to use suspend to disk, however
>>> it looks like after having successfully resumed, thinkpad hotkeys
>>> don't work. I tried to rmmod/modprobe thinkpad-acpi module, but with
>>> no luck. Interestingly, looks like suspend/resume to RAM fixes this
>>> issue -- hotkeys I tested started to work correctly again. I was not
>>> able to make further progress with debugging, but maybe some part of
>>> hotkeys_resume (drivers/platform/x86/thinkpad_acpi.c) disables hotkeys
>>> when resuming from disk; but I have not tested it.If there is anything
>>> I can do/test, I'm ready for any suggestions.
>>>
>>>    Best regards,
>>>      Milan Plzik
>>> --
>>> The linux-thinkpad mailing list home page is at:
>>> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
>>>
>
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