So I configured a kernel with hp-wmi enabled. It had the unfortunate
consequence of disabling wireless on the windows side. I also saw that
some people with different hardware from me were able to resolve their
problem by blacklisting hp-wmi.
rfkill show an additional wifi interface ('hp-wifi' I think), that
behaves exactly as phy0 did. I still am unable to unblock this
interface. phy0 doesn't respond to any rfkill commands or the physical
wifi switch. It is just remains soft and hard blocked.
Dan -- Are there any links/search terms to older conversations on this issue?
Is wifi working on your 2530p?
Thanks
- Darwin
On Mon, Apr 15, 2013 at 11:31 AM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> On Mon, 2013-04-15 at 09:39 -0500, Dan Williams wrote:
>
>> > Yeah it seems not loaded, but how then does the soft block affect hard
>> > block? All very odd, but almost certainly a platform rather than a wifi
>> > issue.
>>
>> On my 2530p and a lot of other laptops, blocking the BIOS
>> "switch" (either physically or softblock) hardblocks phy0. I guess the
>> BIOS twiddles a GPIO that's connected to the mPCI-E module's rfkill
>> line/GPIO?
>
> Yes, that seems to be the case. Something does, anyway, as the GPIO
> state is pretty much directly reflected in the hard kill of the "phy0"
> device.
>
>> Which leads to the problem we've talked about a long time ago; you can't
>> treat phy0 hardblock as a physical block that cannot be soft-unblocked,
>> because some other switch might actually control it's state. We tried
>> to gray-out the "Enable Wireless" when hardblocked (since logically you
>> can't soft-unblock something that's hardblocked), but it turns out you
>> can't do that because unblocking BIOS switches might un-hardblock the
>> phy0 wifi switch... (and the kernel doesn't describe these
>> dependencies, because, well, that's laptop-specific and would never be
>> up-to-date).
>
> Yeah ... best thing you could do is assume that if a bios rfkill exists
> it controls the phy0 hard kill and in case it doesn't enable when you
> unblock the bios device you pop up a message saying to switch the
> physical button?
>
> johannes
>
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