Subject: Re: X11 on iBook G4: flickering screen
To: Emmanuel Dreyfus <manu@NetBSD.org>
From: Charles M. Hannum <abuse@spamalicious.com>
List: port-macppc
Date: 06/29/2004 19:11:48 
Perhaps you could have it print out the PLL values before and after changing; 
i.e. the values that are printed by:

    RADEONTRACE(("Wrote: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
               restore->ppll_ref_div,
               restore->ppll_div_3,
               restore->htotal_cntl,
               INPLL(pScrn, RADEON_PPLL_CNTL)));

and we could do some guru meditation on the nature of the problem.