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Subject: [PATCH] ACPI: disable _OSI(Windows 2009) on Asus K50IJ
From: Zhang Rui <rui.zhang@intel.com>
To: Len Brown <lenb@kernel.org>
Cc: "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
	"Zhang, Rui" <rui.zhang@intel.com>, Alex.Haeussler@googlemail.com
Date: Mon, 21 Dec 2009 16:13:15 +0800
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Index: linux-2.6/drivers/acpi/blacklist.c
===================================================================
--- linux-2.6.orig/drivers/acpi/blacklist.c
+++ linux-2.6/drivers/acpi/blacklist.c
@@ -185,6 +185,12 @@ static int __init dmi_disable_osi_vista(
 	acpi_osi_setup("!Windows 2006");
 	return 0;
 }
+static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
+{
+	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
+	acpi_osi_setup("!Windows 2009");
+	return 0;
+}
 
 static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	{
@@ -211,6 +217,14 @@ static struct dmi_system_id acpi_osi_dmi
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Sony VGN-SR290J"),
 		},
 	},
+	{
+	.callback = dmi_disable_osi_win7,
+	.ident = "ASUS K50IJ",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
+		},
+	},
 
 	/*
 	 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.