On Mon, 2013-04-15 at 15:22 +0200, Johannes Berg wrote: > On Fri, 2013-04-12 at 17:04 -0500, Dan Williams wrote: > > On Thu, 2013-04-11 at 20:03 -0400, schwaahed wrote: > > > Hello, > > > > > > I have an HP Elitebook 8460w laptop containing a Centrino Ultimate-N > > > 6300 AGN (linux-3.8.6 iwlwifi module - firmware version 9.221.4.1 > > > build 25532) > > > > I notice that your 'rfkill list all' dumps below don't contain an entry > > for hp-wmi. Is that module loaded on your machine? It's needed at > > least for earlier models of the Elitebook, up at least until the xx40 > > series. Perhaps it needs to be updated for your laptop? You might ask > > on the general kernel lists if anyone knows how rfkill is supposed to > > work for the 8460 and if hp-wmi supports it, or if some other mechanism > > is used. > > 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? 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). Dan -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
