(#79033, fd.o #2000) Radeon driver disables hotkeys. Provide a new option
BIOSHotkeys to enable hotkey switching.

--- xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c.orig	2005-01-23 13:58:56.000000000 +0100
+++ xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c	2005-01-23 17:35:46.000000000 +0100
@@ -172,6 +172,7 @@ typedef enum {
     OPTION_VGA_ACCESS,
     OPTION_LVDS_PROBE_PLL,
     OPTION_REVERSE_DDC,
+    OPTION_BIOS_HOTKEYS,
 } RADEONOpts;
 
 static const OptionInfoRec RADEONOptions[] = {
@@ -222,6 +223,7 @@ static const OptionInfoRec RADEONOptions
     { OPTION_VGA_ACCESS,     "VGAAccess",        OPTV_BOOLEAN, {0}, TRUE  },
     { OPTION_LVDS_PROBE_PLL, "LVDSProbePLL",     OPTV_BOOLEAN, {0}, FALSE },
     { OPTION_REVERSE_DDC,    "ReverseDDC",       OPTV_BOOLEAN, {0}, FALSE },
+    { OPTION_BIOS_HOTKEYS,   "BIOSHotkeys",      OPTV_BOOLEAN, {0}, FALSE },
     { -1,                    NULL,               OPTV_NONE,    {0}, FALSE }
 };
 
@@ -6899,7 +6901,18 @@ static void RADEONInitFPRegisters(ScrnIn
         }
     }
 
-    if (info->IsMobility) {
+    info->BiosHotkeys = FALSE;
+    /*
+     * Allow the bios to toggle outputs. see below for more.
+     */
+    if (xf86ReturnOptValBool(info->Options, OPTION_BIOS_HOTKEYS, FALSE)) {
+	info->BiosHotkeys = TRUE;
+	xf86DrvMsg(pScrn->scrnIndex, X_INFO, "BIOS HotKeys Enabled\n");
+    } else {
+	xf86DrvMsg(pScrn->scrnIndex, X_INFO, "BIOS HotKeys Disabled\n");
+    }
+
+    if (info->IsMobility && (!info->BiosHotkeys)) {
 	RADEONEntPtr pRADEONEnt   = RADEONEntPriv(pScrn);
 
 	/* To work correctly with laptop hotkeys.
@@ -6927,6 +6940,21 @@ static void RADEONInitFPRegisters(ScrnIn
 	}
 	save->bios_4_scratch = 0x4;
 	save->bios_6_scratch = orig->bios_6_scratch | 0x40000000;
+
+    } else if (info->IsMobility && (info->DisplayType == MT_LCD)) {
+	RADEONEntPtr pRADEONEnt = RADEONEntPriv(pScrn);
+
+	/* BIOS will use this setting to reset displays upon lid close/open.
+	 * Here we let BIOS controls LCD, but the driver will control the external CRT.
+	 */
+	if (info->MergedFB || pRADEONEnt->HasSecondary)
+	    save->bios_5_scratch = 0x01020201;
+	else
+	    save->bios_5_scratch = orig->bios_5_scratch;
+
+    	save->bios_4_scratch = orig->bios_4_scratch;
+	save->bios_6_scratch = orig->bios_6_scratch;
+
     }
 
     save->fp_crtc_h_total_disp = save->crtc_h_total_disp;
--- xc/programs/Xserver/hw/xfree86/drivers/ati/radeon.h.orig	2005-01-23 13:58:56.000000000 +0100
+++ xc/programs/Xserver/hw/xfree86/drivers/ati/radeon.h	2005-01-23 17:35:46.000000000 +0100
@@ -602,6 +602,10 @@ typedef struct {
 
     /* special handlings for DELL triple-head server */
     Bool		IsDellServer; 
+
+    /* enable bios hotkey output switching */
+    Bool		BiosHotkeys;
+
 } RADEONInfoRec, *RADEONInfoPtr;
 
 
--- xc/programs/Xserver/hw/xfree86/drivers/ati/radeon.man.orig	2005-01-23 13:58:56.000000000 +0100
+++ xc/programs/Xserver/hw/xfree86/drivers/ati/radeon.man	2005-01-23 17:35:46.000000000 +0100
@@ -522,6 +522,13 @@ case.  This is only useful for LVDS pane
 The default is
 .B on.
 .TP
+.BI "Option \*qBIOSHotkeys\*q \*q" boolean \*q
+Enable BIOS hotkey output switching. This allows the BIOS to toggle outputs
+using hotkeys (e.g., fn-f7, etc.).  Since the driver does not support ACPI, 
+there is no way to validate modes on an output switch and the BIOS can 
+potentially change things behind the driver's back.  The default is
+.B off.
+.TP
 
 .SH SEE ALSO
 __xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), xorgconfig(__appmansuffix__), Xserver(__appmansuffix__), X(__miscmansuffix__)