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SubjectRe: [3/3] 2.6.21-rc7: known regressions (v2)
On Wed, Apr 25, 2007 at 09:52:16PM +0800, Antonino A. Daplas wrote:
> > This is really weird, as CONFIG_FB_BACKLIGHT just selects
> > BACKLIGHT_CLASS and LCD_CLASS, and adds an entry (bl_curve)
> > under /sys/class/backlight/*/.

Yeah, it's puzzling to me too.

> > ACPI_IBM which is set (presumably) in
> > Dave's kconfig, also selects the BACKLIGHT_CLASS. And the only possible
> > framebuffer drivers in the thinkpad are vesafb and intelfb, none of
> > which has a backlight driver.
> >
> > I'm still at a loss how this happens. Dave, can you post your config?

http://people.redhat.com/davej/config-x60

> > And have you tried the following settings:
> > FB_BACKLIGHT=y
> > ACPI_IBM=n
> > ACPI_VIDEO=n

I think I've tried that yes.

Dave

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