Re: Why Debian i915 intel driver depends on button.ko?

[Lucas <macachuto@gmail.com>]

On 09/14/2012 09:45 PM, Julien Cristau wrote:
> On Fri, Sep 14, 2012 at 15:13:02 +0400, Lucas wrote:
>
> > I am trying to find out what can cause unusable screen picture on my Sandybridge Chipset
> >
> > 00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd
> > Generation Core Processor Family Integrated Graphics Controller
> > [8086:0102] (rev 09)
> >
> > I compared outputs of lsmod from Ubuntu (3.2.0-25), Fedora (
> > 3.4.2-1.fc16.x86_64)  and Debian Wheezy (3.2.0-3-amd64 / Debian
> > 3.2.23-1) and it seems that Debian i915 depends on button.ko, which
> > depends on ACPI lid button.
> >
> > I have Fedora and Ubuntu on laptop - they do not have that module
> > loaded. So their i915 can operate without button.ko.
> It's builtin in fedora.  I suspect it's the same in ubuntu.

May be it is. May in different way, because:
In Fedora-16 I can use i915 with "acpi=off" passed to kernel, but in Debian Wheezy can't - kernel 
unable to load it because there is no acpi and therefor, there won't be lid button.