From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753251Ab1JZWL5 (ORCPT ); Wed, 26 Oct 2011 18:11:57 -0400 Received: from smtpauth05.prod.mesa1.secureserver.net ([64.202.165.99]:33866 "HELO smtpauth05.prod.mesa1.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752641Ab1JZWL4 (ORCPT ); Wed, 26 Oct 2011 18:11:56 -0400 X-Greylist: delayed 399 seconds by postgrey-1.27 at vger.kernel.org; Wed, 26 Oct 2011 18:11:56 EDT From: J LaCroix To: linux-kernel@vger.kernel.org Subject: Battery Sometimes Not Detected Date: Wed, 26 Oct 2011 18:05:33 -0400 Message-ID: <4499333.9RBPNNDCzX@athena> User-Agent: KMail/4.7.2 (Linux/3.0-ARCH; KDE/4.7.2; x86_64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I wanted to submit this bug to the Kernel Bugzilla, but it appears to be down. Anyway, I'm on kernel 3.0, using 64-bit Arch Linux on a Dell Latitude E6410. Every now and then, the battery shows up as though it's not connected, even while running on it. This is seemingly random, and if it happens, I just reboot my laptop and it will see the battery fine most of the time. I want to say about one in ten boots it doesn't see the battery on average. I filed this first against KDE, but then the problem happened in XCE so it's not a KDE issue. Then, I filed it against upower but they told me this is a kernel bug. An interesting point to note is that while this problem happens whether I am using my docking station or not, if I undock my laptop while the laptop doesn't see the battery, all of a sudden the battery is recognized. Running "ls /sys/class/power_supply/" while suffering from this bug gives me: AC upower -d reports: Device: /org/freedesktop/UPower/devices/line_power_AC native-path: /sys/devices/LNXSYSTM:00/device:00/ACPI0003:00/power_supply/AC power supply: yes updated: Wed Oct 26 17:04:34 2011 (3127 seconds ago) has history: no has statistics: no line-power online: yes Daemon: daemon-version: 0.9.14 can-suspend: yes can-hibernate yes on-battery: no on-low-battery: no lid-is-closed: no lid-is-present: yes is-docked: no -- J LaCroix A+, Network+, Server+, Linux+, CLA, DCTS, LPIC-1 Certified Field Technician (P) 248.520.4062 (E) j@jlacroix.me http://www.jlacroix.me