[Intel-gfx] New Samsung driver for backlight control.
greg at kroah.com
Tue Sep 8 09:31:24 PDT 2009
On Tue, Sep 08, 2009 at 06:05:03PM +0200, Matthias Hopf wrote:
> On Aug 31, 09 10:54:29 -0700, Greg KH wrote:
> > > Is there a way to make the brightness more finer controlled using this
> > > interface?
> > Not that I know of, sorry, it looks like the hardware is only allowing
> > this to be changed in 8 levels of increments. Windows should work this
> > same way, right?
> AFAIR at one point you deliberately decided to expose only 8 levels to
> the user - while the hardware was capable of more levels (I think it was
> something about some user land tool expecting something like that).
> But I may be utterly wrong.
Yes, that was when we were blindly poking in the PCI config space. We
aren't supposed to be doing that :)
> I'd love to have more fine grained control on my NC10 as well.
I have reports that Windows also only supports 8 levels, so that is what
this hardware controller is possible of supporting, sorry.
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