linux-kernel - Re: Acer Aspire One now hangs on reboot/shutdown

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Message-ID: <w439iki5vl.wl%peter@chubb.wattle.id.au>
Date:	Wed, 06 Jul 2011 10:56:30 +1000
From:	Peter Chubb <peter.chubb@...ta.com.au>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Peter Chubb <peter.chubb@...ta.com.au>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	linux-kernel@...r.kernel.org
Subject: Re: Acer Aspire One now hangs on reboot/shutdown


Since git commit 
  660e34cebf0a11d54f2d5dd8838607452355f321 x86: reorder reboot method
  preferences, 
my Acer Aspire One hangs on reboot.  It appears that its ACPI method
for rebooting is broken.  The attached patch adds a quirk so that the
machine will reboot via the BIOS.

Signed-off-by: Peter Chubb <peter.chubb@...ta.com.au>

Index: linux-2.6/arch/x86/kernel/reboot.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/reboot.c	2011-07-06 10:30:00.273792656 +1000
+++ linux-2.6/arch/x86/kernel/reboot.c	2011-07-06 10:39:53.397925146 +1000
@@ -294,6 +294,14 @@
 			DMI_MATCH(DMI_BOARD_NAME, "VersaLogic Menlow board"),
 		},
 	},
+	{ /* Handle reboot issue on Acer Aspire one */
+		.callback = set_bios_reboot,
+		.ident = "Acer Aspire One A110",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
+		},
+	},
 	{ }
 };
 


--
Dr Peter Chubb                                  peter DOT chubb AT nicta.com.au
http://www.ertos.nicta.com.au               ERTOS within National ICT Australia
All things shall perish from under the sky/Music alone shall live, never to die
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