Re: [PATCH] Add Lenovo Ideapad S12 to acer blacklist

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Add Cc. issue reporter Ville-Pekka Vainio <vpivaini@xxxxxxxxxxxxxx>

Hi Matthew, 

æ åï2010-12-30 æ 01:41 +0000ïMatthew Garrett æåï
> On Thu, Dec 30, 2010 at 09:32:54AM +0800, Lee, Chun-Yi wrote:
> > The Lenovo Ideapad S12's _WDG have GUID that matches with AMW0, it causes
> > acer-wmi driver auto-probe when system boot but there already have
> > ideapad-laptop driver to support Ideapad serial.
> > So, add Lenovo Ideapad S12 to acer blacklist to disable it.
> 
> This seems like it could be handled better. Does the interface fail, or 
> does it merely duplicate the functionality of the ideapad driver?
> 

Ville-Pekka Vainio reported this issue, acer-wmi adds a soft blocked
wifi killswitch, which can't be unblocked with rfkill. It causes
NetworkManager on Fedora have problem.

Vainio said ideapad-laptop driver handle the killswitches better, there
is mail loop for discuss this issue:

http://www.mail-archive.com/platform-driver-x86@xxxxxxxxxxxxxxx/msg01027.html


Thank's a lot!
Joey Lee


                                å: 
Ville-Pekka Vainio
<vpivaini@xxxxxxxxxxxxxx>
                                è: 
platform-driver-x86@xxxxxxxxxxxxxxx
                              äæ: 
acer-wmi is unnecessarily loaded on
a Lenovo Ideapad S12
                              ææ: 
Tue, 28 Dec 2010 14:31:45 +0200
(20:31 CST)


Hi,

I hope I'm on the right mailing list for this issue. The kernel (I'm
using Fedora's 2.6.37rc7) loads the acer-wmi module on a Lenovo Ideapad
S12 netbook and I think that's not necessary. Loading the module causes
problems with NetworkManager, the wireless network can't be enabled at
all. This seems to happen because acer-wmi adds a soft blocked wifi
killswitch, which can't be unblocked with rfkill.

Now that the kernel has the ideapad-laptop module, which seems to handle
the killswitches better, acer-wmi could probably be disabled with this
netbook. I know almost nothing about ACPI/WMI myself, which is why I'm
writing on the list instead of just fixing this.

-- 
Ville-Pekka Vainio

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