From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932265AbeCLXSu (ORCPT ); Mon, 12 Mar 2018 19:18:50 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:36653 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751386AbeCLXSt (ORCPT ); Mon, 12 Mar 2018 19:18:49 -0400 Date: Tue, 13 Mar 2018 00:18:47 +0100 From: Pavel Machek To: "Rafael J. Wysocki" Cc: Ognjen =?utf-8?B?R2FsacSH?= , kernel list , ACPI mailing list , "Rafael J. Wysocki" , Sebastian Reichel Subject: Re: linux-next on thinkpad x60: full battery is indicated as battery error in mate Message-ID: <20180312231847.GB7612@amd> References: <20180312194715.GA3992@amd> <20180312194944.GA3979@amd> <20180312223521.vzccevf6z7ik5ysf@thinkpad> <20180312230407.GA7612@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="+pHx0qQiF2pBVqBT" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --+pHx0qQiF2pBVqBT Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > >> > >> Fully charged > >> > >> battery shows as empty battery with red "x" in Mate desktop. After > >> > >> reboot to recent mainline problem goes away. Tooltip says "battery > >> > >> waiting to charge". > >> > >> > >> > >> For the MATE bug see: > >> https://github.com/mate-desktop/mate-power-manager/pull/251 > >> > >> The problem is in the new composite battery system in UPower, it > >> "merges" two external batteries into a single one for reporting. That > >> battery does not understand "Not Charging" inside the MATE Power > >> Manager. The above patch fixes that in MATE. > > > > Ok, so problem is 91eea70e5e5ce12eb1c7cd922e561fab43e201bd. > > > > And now, I see that MATE should be improved. > > > > But what I also see is that kernel is changing its interface in a way > > that (while making sense) breaks existing application. And we don't > > break existing applications. > > > > [Now... maybe if the fix for the application is available for long > > long time and noone is really looking and everyone already has new > > application version, maybe ... But pull request for MATE is 9 days > > old, and not even merged. So there is no way this is suitable for > > 4.17.] >=20 > Right. >=20 > This basically means that we will have to defer the battery changes > until user space is ready and not just upstream, but also in distro > packages. Yes please. Note that only 91eea70e5e5ce12eb1c7cd922e561fab43e201bd should break anything, the others should be safe AFAICT? Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --+pHx0qQiF2pBVqBT Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlqnCtYACgkQMOfwapXb+vIY3wCghlVK7leroKKt/qWaiSwyyh1F qDIAnjLq6SzoIV3sF2Hhh1+KDhVzmUz+ =O48s -----END PGP SIGNATURE----- --+pHx0qQiF2pBVqBT--