Return-Path: Received: from mail177-1.suw61.mandrillapp.com ([198.2.177.1]:21464 "EHLO mail177-1.suw61.mandrillapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932263AbcCAX5n convert rfc822-to-8bit (ORCPT ); Tue, 1 Mar 2016 18:57:43 -0500 Received: from pmta06.mandrill.prod.suw01.rsglab.com (127.0.0.1) by mail177-1.suw61.mandrillapp.com id hqom7e22rtku for ; Tue, 1 Mar 2016 23:55:10 +0000 (envelope-from ) From: Greg Kroah-Hartman Subject: [PATCH 4.4 257/342] hwmon: (dell-smm) Blacklist Dell Studio XPS 8000 To: Cc: Greg Kroah-Hartman , , Thorsten Leemhuis , =?utf-8?Q?Pali=20Roh=C3=A1r?= , Guenter Roeck Message-Id: <20160301234536.209520222@linuxfoundation.org> In-Reply-To: <20160301234527.990448862@linuxfoundation.org> References: <20160301234527.990448862@linuxfoundation.org> Date: Tue, 01 Mar 2016 23:55:10 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Sender: stable-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thorsten Leemhuis commit 6220f4ebd7b4db499238c2dc91268a9c473fd01c upstream. Since Linux 4.0 the CPU fan speed is going up and down on Dell Studio XPS 8000 and 8100 for unknown reasons. The 8100 was already blacklisted in commit a4b45b25f18d ("hwmon: (dell-smm) Blacklist Dell Studio XPS 8100"). This patch blacklists the XPS 8000. Without further debugging on the affected machine, it is not possible to find the problem. For more details see https://bugzilla.kernel.org/show_bug.cgi?id=100121 Signed-off-by: Thorsten Leemhuis Acked-by: Pali Rohár Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/hwmon/dell-smm-hwmon.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -932,6 +932,17 @@ MODULE_DEVICE_TABLE(dmi, i8k_dmi_table); static struct dmi_system_id i8k_blacklist_dmi_table[] __initdata = { { /* + * CPU fan speed going up and down on Dell Studio XPS 8000 + * for unknown reasons. + */ + .ident = "Dell Studio XPS 8000", + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Studio XPS 8000"), + }, + }, + { + /* * CPU fan speed going up and down on Dell Studio XPS 8100 * for unknown reasons. */