From e5797660d63a71d52398b6d388e02819aa6f07a6 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@airlied-rhel5.(none)>
Date: Wed, 21 Apr 2010 11:05:23 +1000
Subject: intel-redetect-on-acpi.patch

---
 src/i830_driver.c |  4 ++--
 src/i830_quirks.c | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/i830_driver.c b/src/i830_driver.c
index 6378e898..0a688480 100644
--- a/src/i830_driver.c
+++ b/src/i830_driver.c
@@ -3412,8 +3412,8 @@ I830PMEvent(int scrnIndex, pmEvent event, Bool undo)
          return TRUE;
 
       ErrorF("I830PMEvent: Capability change\n");
-
-      I830CheckDevicesTimer(NULL, 0, pScrn);
+      xf86InitialConfiguration(pScrn, 0);
+      xf86SetDesiredModes(pScrn);
       SaveScreens(SCREEN_SAVER_FORCER, ScreenSaverReset);
       break;
    default:
diff --git a/src/i830_quirks.c b/src/i830_quirks.c
index e957845e..1c79d132 100644
--- a/src/i830_quirks.c
+++ b/src/i830_quirks.c
@@ -28,6 +28,7 @@
 #include "config.h"
 #endif
 
+#include <fcntl.h>
 #include "i830.h"
 
 #define SUBSYS_ANY (~0)
@@ -255,12 +256,29 @@ static i830_quirk i830_quirk_list[] = {
     { 0, 0, 0, NULL },
 };
 
+static void i830_enable_ibm_hotkey(ScrnInfoPtr scrn)
+{
+    int fd;
+    const char *str = "enable,0x084c\n";
+
+    fd = open("/proc/acpi/ibm/hotkey", O_RDWR);
+    if (fd < 0)
+	return;
+
+    write(fd, str, strlen(str));
+
+    close(fd);
+}
+
 void i830_fixup_devices(ScrnInfoPtr scrn)
 {
     I830Ptr pI830 = I830PTR(scrn);
     i830_quirk_ptr p = i830_quirk_list;
     int i;
 
+    if (SUBVENDOR_ID(pI830->PciInfo) == 0x17aa)
+	i830_enable_ibm_hotkey(scrn);
+
     i830_dmi_scan();
 
     if (0)
-- 
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