From mboxrd@z Thu Jan 1 00:00:00 1970 From: "xavier.gnata@gmail.com" Subject: Re: bug : Dell Inspiron 15 7000 : battery detection only after AC power adapter event. Date: Mon, 18 Aug 2014 23:22:51 +0200 Message-ID: <53F26EAB.8050503@gmail.com> References: <53F1E109.1030801@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-we0-f175.google.com ([74.125.82.175]:42848 "EHLO mail-we0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751066AbaHRVWy (ORCPT ); Mon, 18 Aug 2014 17:22:54 -0400 Received: by mail-we0-f175.google.com with SMTP id t60so5595225wes.20 for ; Mon, 18 Aug 2014 14:22:52 -0700 (PDT) Received: from ?IPv6:2a01:e35:8a7f:290:9dfa:6230:a05a:2ec1? ([2a01:e35:8a7f:290:9dfa:6230:a05a:2ec1]) by mx.google.com with ESMTPSA id a4sm41563739wie.21.2014.08.18.14.22.51 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Aug 2014 14:22:52 -0700 (PDT) In-Reply-To: <53F1E109.1030801@gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org On 18/08/2014 13:18, xavier.gnata@gmail.com wrote: > Hi, > > When I boot a Dell 15" serie 7000 with or without it AC power adapter > no battery is detected: > acpi -i -b -a > Adapter 0: off-line > > As soon as I plug or unplug the AC adapter, the battery is detected: > acpi -i -b -a > Battery 0: Charging, 62%, 01:13:00 until charged > Battery 0: design capacity 3950 mAh, last full capacity 3850 mAh = 97% > Adapter 0: on-line > > Attached : dmesg and dsdt.dsl. What else do you need? > Looks like a buggy dsdt table but I'm not an expert. > > The bug is the same on 3.17-rc1, 3.16.1 and 3.13. > > Xavier As a workaround one can boot with acpi_osi=Linux . I don't see any side effects. Xavier