On Sunday 28 November 2004 2:58, Benjamin Herrenschmidt wrote: > > > > 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..)
So I added a couple of printk()s like you asked. I added one to aty128fb_blank() in aty128fb.c:2037 and two to aty_init() in atyfb_base.c:1793 and 1802 (inside the 'if (M64_HAS(MOBIL_BUS))'). The one I added to aty128fb didn't print (as expected), but both of them from atyfb_base.c printed. So it seems that CONFIG_PMAC_BACKLIGHT is properly defined. Anything you'd specifically like me to try? I find it interesting that in the console the dimming works. I thought that on PPC the console used the framebuffer. Another notable thing is that while in X, the dimming doesn't work, but when I switch to one of the VTs, the screen brightness is adjusted to what it should have been in X. Thanks for your help on this, Frank
