diff -u -r1.24 trident_video.c
--- XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/trident/trident_video.c	2002/04/01 12:06:20	1.24
+++ XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/trident/trident_video.c	2002/04/03 22:47:27
@@ -63,7 +63,9 @@
 static int TRIDENTQueryImageAttributes(ScrnInfoPtr, 
 	int, unsigned short *, unsigned short *,  int *, int *);
 static void TRIDENTVideoTimerCallback(ScrnInfoPtr pScrn, Time time);
+#if 0
 static void tridentSetVideoGamma(TRIDENTPtr pTrident,int value,int brightness);
+#endif
 static void tridentSetVideoContrast(TRIDENTPtr pTrident,int value);
 static void tridentSetVideoParameters(TRIDENTPtr pTrident, int brightness, 
 				      int saturation, int hue);
@@ -305,7 +307,9 @@
 	    break;
 	}    
     }    
+#if 0
     tridentSetVideoGamma(pTrident,pPriv->Gamma,pPriv->Brightness);
+#endif
     tridentSetVideoContrast(pTrident,pPriv->Contrast);
     tridentSetVideoParameters(pTrident,pPriv->Brightness,pPriv->Saturation,
                             pPriv->HUE);
@@ -355,7 +359,9 @@
     pPriv->Brightness = 45;
     pPriv->Saturation = 80;
     pPriv->Contrast = 4;
+#if 0
     pPriv->Gamma = 0;
+#endif
     pPriv->HUE = 0;
     pPriv->videoStatus = 0;
     pPriv->fixFrame = 100;
@@ -371,7 +377,9 @@
     	xvBrightness = MAKE_ATOM("XV_BRIGHTNESS");
     	xvSaturation = MAKE_ATOM("XV_SATURATION");
     	xvHUE        = MAKE_ATOM("XV_HUE");
+#if 0
     	xvGamma      = MAKE_ATOM("XV_GAMMA");
+#endif
     	xvContrast   = MAKE_ATOM("XV_CONTRAST");
     }
 
@@ -595,12 +603,14 @@
     pPriv->HUE = value;
     tridentSetVideoParameters(pTrident, pPriv->Brightness, pPriv->Saturation,
 			      pPriv->HUE);
+#if 0
     tridentSetVideoGamma(pTrident,pPriv->Gamma,pPriv->Brightness);
   } else if (attribute == xvGamma) {
     if ((value < -128) || (value > 127))
       return BadValue;
     pPriv->Gamma = value;
     tridentSetVideoGamma(pTrident,value,pPriv->Brightness);
+#endif
   } else if (attribute == xvContrast) {
     if ((value < 0) || (value > 127))
       return BadValue;
@@ -629,8 +639,10 @@
 	*value = pPriv->Saturation;
   } else if (attribute == xvHUE) {
 	*value = pPriv->HUE;
+#if 0
   } else if (attribute == xvGamma) {
 	*value = pPriv->Gamma;
+#endif
   } else if (attribute == xvContrast) {
 	*value = pPriv->Contrast;
   } else