Re: [gentoo-user] Ideapad-laptop

[Nilesh Govindrajan <me@nileshgr.com>]

On Thu, 2014-07-31 at 20:22 +0200, J. Roeleveld wrote:
> On 31 July 2014 19:40:07 CEST, Nilesh Govindrajan <me@nileshgr.com> wrote:
> >On Wed, 2014-07-30 at 16:32 +0530, Nilesh Govindrajan wrote:
> >> On 30-Jul-2014 4:30 pm, "Mick" <michaelkintzios@gmail.com> wrote:
> >> >
> >> > On Wednesday 30 Jul 2014 11:53:25 Nilesh Govindrajan wrote:
> >> > > So I got a new Lenovo G50.
> >> > > I found all the required drivers in kernel itself. Seems to be
> >> quite Linux
> >> > > friendly so far (not installed desktop yet).
> >> > >
> >> > > There's one problem though. The kernel module ideapad-laptop
> >which
> >> > > apparently recognizes the hotkey stuff, backlight and some other
> >> things
> >> > > doesn't let me use wireless. rfkill shows it's hard blocked. Is
> >> there any
> >> > > way to change this?
> >> > >
> >> > > Some Google results tell me that this is related to the WiFi
> >> toggle via
> >> > > windows. The machine never contained windows ( I bought it with
> >> freedos).
> >> > >
> >> > > I'm not comfortable with opening it to remove CMOS battery as
> >> suggested by
> >> > > yet another Google search result.
> >> >
> >> > What does 'rfkill enable wlan0' give you?  It should be able to
> >> override any
> >> > hotkey setting.
> >> >
> >> > --
> >> > Regards,
> >> > Mick
> >> 
> >> The soft block gets removed, but hard block remains, and there's no
> >> hardware switch for the same. If I remove the module it works without
> >> any problems.
> >> 
> >
> >I don't really understand the exact purpose of that module. Touchpad,
> >brightness control, sound control, camera, radio everything works out
> >of
> >the box without the module. Except that I'm not able to toggle airplane
> >mode using the hotkey, but that's not a big issue.
> 
> I am not familiar with that module.
> But in a long distant past I wrote a module to handle the special keys on an ASUS laptop which were exposed via ACPI. 
> I always assume these modules add support for special keys and settings not handled by any other driver.
> 
> --
> Joost

Yes, a quick scan through the code told me that. But I still don't
understand why radio gets hard blocked when the module is enabled and
works perfectly when the module is not loaded. I found this bug today -
https://bugzilla.kernel.org/show_bug.cgi?id=56381

So I guess, it's just a matter of time. Wish I knew kernel coding to
supply a patch.