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SubjectRe: 2.6.21-rc2 radeon backlight
On Fri, 02 Mar 2007 09:24:03 -0800
Alex Romosan <romosan@sycorax.lbl.gov> wrote:

> Andrew Morton <akpm@linux-foundation.org> writes:
>
> > On Wed, 28 Feb 2007 08:32:43 -0800
> > Alex Romosan <romosan@sycorax.lbl.gov> wrote:
> >
> >> the backlight on my thinkpad still (2.6.20 worked fine) doesn't come
> >> on if i have the radeon backlight enabled. without it, i guess it's
> >> the ibm acpi modules that controls the backlight and it seems to work
> >> fine.
> >>
> >
> > Unclear. Are you saying that the backlight comes on OK if you use
> > the IBM acpi module?
>
> yes, if i disable the radeon backlight and use the ibm acpi module,
> than the backlight works. if i enable the radeon backlight, the screen
> stays dark and i can't turn it on (i tried using radeontool to control
> it but nothing happened).

Richard, is this actually a bug, or is it a config error or something like that?

And should we track it as a post-2.6.20 regression?
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