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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Frank Murphy <murphyf+xfree86@f-m.fm>
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Date: Sun, 28 Nov 2004 12:58:12 +1100
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Cc: debian-x@lists.debian.org, linuxppc-dev list <linuxppc-dev@ozlabs.org>
Subject: Re: G3 iBook LCD brightness in X under kernel 2.4.25 and 2.6.8
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> r.
> 
> So I've tried this using the stock Debian 2.6.8 and 2.6.9 PPC kernels with the 
> same results.
> 
> $ grep ATY /boot/config-2.6.9-powerpc
> CONFIG_FB_ATY128=y
> CONFIG_FB_ATY=y
> CONFIG_FB_ATY_CT=y
> CONFIG_FB_ATY_GX=y
> # CONFIG_FB_ATY_XL_INIT is not set
> 
> It seems that the atyfb module is compiled in. Is there another way to check?

Check the bits in CONFIG_PMAC_BACKLIGHT in atyfb (like, add some
printk's to see if they are reached etc..)

Ben