[ltp] Thinkpad **30 series, Linux 3.7 and brightness keys

[Yves-Alexis Perez]

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On lun., 2013-02-18 at 14:15 -0500, Theodore Ts'o wrote:
> On Mon, Feb 18, 2013 at 06:32:39PM +0100, Yves-Alexis Perez wrote:
> > it seems that there's an issue with brightness keys handling in the
> > 2012/2013 Thinkpads when using the 3.7+ kernels.
> >=20
> > Basically, since Linux replies to the _OSI("Windows 2012") call from
> > acpi, it behaves badly. There's an upstream bug at
> > https://bugzilla.kernel.org/show_bug.cgi?id=3D51231 with a lot of detai=
ls.
> >=20
>=20
> For what it's worth, I have an X230, with the 2.06 version of the BIOS an=
d the
> 1.10 version of the firmware, running a 3.8-rc6 kernel plus ext4 developm=
ent
> patches (3.8.0-rc6-00041-gf3a1e5d).  i am using Xfce4 (none of that GNOME=
 crap
> for me :-), and the brightness keys (Fn-F8/Fn-F9) work just _fine_.

That's good to know, I'll try a 3.8 branch tomorrow then. Afair I'm
using latest bios (2.51). 2.50 as a =E2=80=9C(Fix) Fixed an issue that migh=
t
have screen corruption on
Linux.=E2=80=9D (http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/g2u=
j10us.txt) but it looks unrelated.
>=20
> I've added a note to that effect to the Bugzilla entry; hopefully this
> will help folks debug the issue.
>=20
Thanks!
--=20
Yves-Alexis

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