--- xserver-xorg-video-ati-6.6.192.orig/src/radeon_bios.c	2007-06-13 00:28:36.000000000 +0200
+++ xserver-xorg-video-ati-6.6.192/src/radeon_bios.c	2007-06-13 00:26:46.000000000 +0200
@@ -431,6 +431,8 @@ Bool RADEONGetLVDSInfoFromBIOS (ScrnInfo
 	    info->VOverPlus  = RADEON_BIOS16(tmp+18);
 	    info->VSyncWidth = RADEON_BIOS16(tmp+20);
 	    info->PanelPwrDly = RADEON_BIOS16(tmp+40);
+	    if (info->PanelPwrDly > 2000 || info->PanelPwrDly < 0)
+		info->PanelPwrDly = 2000;
 
 	    info->Flags = 0;
 	    xf86DrvMsg(pScrn->scrnIndex, X_WARNING,