On 08/20/2013 11:24 PM, Rafael J. Wysocki wrote:
> On Tuesday, August 20, 2013 11:10:44 PM Wouter Depypere wrote:
>> On 08/20/2013 11:15 PM, Rafael J. Wysocki wrote:
>>> On Tuesday, August 20, 2013 10:05:18 PM Wouter Depypere wrote:
>>>> Hi,
>>>>
>>>> I recently updated my kernel (from 3.2.0.4 to 3.10) and noticed the
>>>> hardware switch to enable/disable wireless didn't work anymore, it is
>>>> completely ignored, dmesg shows no output. My laptop is a Dell E6230
>>>> with an Intel Corporation Centrino Ultimate-N 6300 (rev 35) wireless
>>>> adapter.
>>>>
>>>> I bisected with git (bisect log and final output attached to this mail)
>>>> and found the commit after which it stopped working:
>>>> a57f7f9175b8ccbc9df83ac13860488913115de4
>>>>
>>>> I commented out this line:
>>>>
>>>> diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
>>>> index 7e80772..ca06691 100644
>>>> --- a/drivers/acpi/acpica/utosi.c
>>>> +++ b/drivers/acpi/acpica/utosi.c
>>>> @@ -73,7 +73,7 @@ static struct acpi_interface_info
>>>> acpi_default_supported_interfaces[] = {
>>>> {"Windows 2006 SP1", NULL, 0, ACPI_OSI_WIN_VISTA_SP1}, /*
>>>> Windows Vista SP1 - Added 09/2009 */
>>>> {"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2}, /*
>>>> Windows Vista SP2 - Added 09/2010 */
>>>> {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7}, /* Windows 7 and
>>>> Server 2008 R2 - Added 09/2009 */
>>>> - {"Windows 2012", NULL, 0, ACPI_OSI_WIN_8}, /* Windows 8 and
>>>> Server 2012 - Added 08/2012 */
>>>> +/* {"Windows 2012", NULL, 0, ACPI_OSI_WIN_8}, /* Windows 8 and
>>>> Server 2012 - Added 08/2012 */
>>>>
>>>> /* Feature Group Strings */
>>>>
>>>>
>>>> I recompiled (both 3.10 and 3.11.0-rc6 kernels) and strangely enough my
>>>> switch is working again.
>>>>
>>>> Can somebody look into this?
>>> If it works with 3.10.y and later, what exactly do you need?
>>>
>>> Rafael
>>>
>> It doesn't work with 3.10.y unless I edit the file and comment out that
>> line about Windows 2012.
> I see, thanks for the clarification.
>
> Passing acpi_osi="!Windows 2012" in the kernel command line instead of editing
> the file above should help too.
>
> If that's the case, please add your system information to bug #60697 at
> bugzilla.kernel.org.
>
> Thanks,
> Rafael
>
Passing acpi_osi="!Windows 2012" does indeed help. I will add my info to that bug.
Thank you for your fast reply,
Wouter
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