Index: src/radeon_driver.c
===================================================================
RCS file: /cvs/xorg/driver/xf86-video-ati/src/radeon_driver.c,v
retrieving revision 1.117
diff -p -u -r1.117 radeon_driver.c
--- src/radeon_driver.c	3 May 2006 04:25:27 -0000	1.117
+++ src/radeon_driver.c	8 May 2006 17:27:17 -0000
@@ -9039,6 +9064,14 @@ _X_EXPORT Bool RADEONEnterVT(int scrnInd
 
     pScrn->AdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 
+    if ((!info->IsSecondary) && info->IsMobility) {
+        if (xf86ReturnOptValBool(info->Options, OPTION_DYNAMIC_CLOCKS, FALSE)) {
+	    RADEONSetDynamicClock(pScrn, 1);
+        } else {
+	    RADEONSetDynamicClock(pScrn, 0);
+        }
+    }
+
     return TRUE;
 }