Re: Wireless key on Fujitsu E753 not working since a57f7f9175b8ccbc9df83ac13860488913115de4

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Thanks for your answer and sorry for the delay.
I finally got some time to look into this:
When I boot with the named boot option the key does work with and
without fujitsu_laptop being loaded.
Additionally I found a bug report at launchpad:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1159690 with some
more people affected by this, who are using notebooks from different
manufacturers, so this doesn't really seem to be related to
fujitsu_laptop module, does it?

Regards
jhs

2013-11-30 11:30 GMT+01:00 Jonathan Woithe <jwoithe@xxxxxxxxxx>:
> Jo Jan
>
> On Fri, Nov 22, 2013 at 08:36:23PM +0100, Jan Hinnerk Stosch wrote:
>> I just wanted to ask whether there is something I could do about this?
>
> I'm not sure.  To recap what you have found:
>
>> since commit "a57f7f9175b8ccbc9df83ac13860488913115de4" (bisected) the
>> wireless key on my Fujitsu E753 is not working any more. If I boot up
>> with parameter "acpi_osi="!Windows 2012"" it works, though.
>> I filed an ACPI-bug
>> (https://bugzilla.kernel.org/show_bug.cgi?id=60161), but was told
>> (https://bugzilla.kernel.org/show_bug.cgi?id=60161#c5) that this is
>> caused by the fujitsu_laptop driver. So I report it here. Should I
>> file a bug anywhere or is it enough to write it to the list?
>
> You then answered a followup question which indicated that if fujitsu_laptop
> module is *not* loaded the key still doesn't work.
>
> Does the key work without fujitsu_laptop loaded on a kernel before the
> commit in question?
>
> As I have said previously I am not sure I am in a position to offer
> assistance here.  Firstly I do not have access to any Fujitsu hardware other
> than my S7020, and that hardware does not implement a wireless key like the
> E753 does.  Secondly, I do not presently understand how the OSI changes in
> commit a57f7f9175b8ccbc9df83ac13860488913115de4 could affect the
> fujitsu_laptop module and break the handling of this "wireless key".
>
>> Should I ask in another mailing list or sth?
>
> I don't think so.  Platform-driver-x86 is the appropriate mailing list.
>
> As I said in an earlier email:
>
>> If someone could explain what the new _OSI string could be doing (or point
>> to documentation) I could try to work out what might be happening.  I am a
>> little restricted in what I can do though because I don't have fujitsu
>> hardware that supports the software RF kill switch.
>
> Understanding what this _OSI string does and how it could be causing
> fujitsu_laptop to loose control of the "wireless" key is fundamental to
> solving this problem.  I do not have this knowledge at this point in time,
> and I do not have the time available right now to start looking into the
> whole OSI thing from scratch.  Not having hardware affected by the problem
> also makes it difficult for me to investigate.
>
> To make progress with this issue, we need to work out what this OSI change
> has done to the seemingly unrelated code in fujitsu_laptop.  This involves
> working out what OSI does in the first place.
>
> Sorry that I can't be more definitive than this.
>
> Regards
>   jonathan
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