diff -up xf86-video-ati-6.7.196/src/radeon_driver.c.randr-gamma xf86-video-ati-6.7.196/src/radeon_driver.c
--- xf86-video-ati-6.7.196/src/radeon_driver.c.randr-gamma	2007-11-12 11:29:55.000000000 +1000
+++ xf86-video-ati-6.7.196/src/radeon_driver.c	2007-11-29 17:30:03.000000000 +1000
@@ -2932,10 +2932,13 @@ static void RADEONLoadPalette(ScrnInfoPt
 
 	      /* Make the change through RandR */
 #ifdef RANDR_12_INTERFACE
-      RRCrtcGammaSet(crtc->randr_crtc, lut_r, lut_g, lut_b);
-#else
-      crtc->funcs->gamma_set(crtc, lut_r, lut_g, lut_b, 256);
+      if (crtc->randr_crtc)
+          RRCrtcGammaSet(crtc->randr_crtc, lut_r, lut_g, lut_b);
+      else
 #endif
+      {
+          crtc->funcs->gamma_set(crtc, lut_r, lut_g, lut_b, 256);
+      }
       }
     }