diff -aur linux-2.6.11.7/drivers/video/aty/radeon_pm.c linux-2.6.11-x/drivers/video/aty/radeon_pm.c
--- linux-2.6.11.7/drivers/video/aty/radeon_pm.c	2005-04-21 09:45:49.000000000 +0200
+++ linux-2.6.11-x/drivers/video/aty/radeon_pm.c	2005-04-08 07:49:32.000000000 +0200
@@ -2698,6 +2698,9 @@
 		radeon_pm_disable_dynamic_mode(rinfo);
 		printk("radeonfb: Dynamic Clock Power Management disabled\n");
 	}
+	if (rinfo->is_mobility && rinfo->pm_reg &&
+	    rinfo->family <= CHIP_FAMILY_RV250)
+	  	rinfo->pm_mode |= radeon_pm_d2;
 
 	/* Check if we can power manage on suspend/resume. We can do
 	 * D2 on M6, M7 and M9, and we can resume from D3 cold a few other