Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757997Ab1F1NiU (ORCPT ); Tue, 28 Jun 2011 09:38:20 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:58239 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757982Ab1F1NgR (ORCPT ); Tue, 28 Jun 2011 09:36:17 -0400 From: Keng-Yu Lin To: Matthew Garrett , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Cc: ike.pan@canonical.com, vanhoof@canonical.com, kent.lin@canonical.com, sylee@canonical.com, Keng-Yu Lin Subject: [PATCH 1/2] ideapad-laptop: Ignore an unused VPC notification Date: Tue, 28 Jun 2011 14:35:53 +0100 Message-Id: <1309268154-6872-1-git-send-email-kengyu@canonical.com> X-Mailer: git-send-email 1.7.4.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1319 Lines: 37 BIOS fires notifications in a constant period with VPC bit 1 set when the power cord is unplugged. This event is not known yet to have any effect, but it makes the call to sparse_keymap_report_event() and generates many KEY_UNKNOWNs. This causes the userspace (Gnome Power Manager in my case) unable to enter the idle mode. As the result there is no screensaver showing up, no dim backlight, etc. Signed-off-by: Keng-Yu Lin --- drivers/platform/x86/ideapad-laptop.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index bfdda33..820f013 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -463,7 +463,8 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event) ideapad_sync_rfk_state(adevice); else if (vpc_bit == 4) read_ec_data(handle, 0x12, &vpc2); - else + else if (vpc_bit == 1) { + } else ideapad_input_report(priv, vpc_bit); } } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/