Re: hardware radio switch ignored ( intel n 6300 ) - kernel 3.6 and higher

[Wouter Depypere <wouter.depypere@ugent.be>]

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.

Wouter