Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756872AbaDPVqK (ORCPT ); Wed, 16 Apr 2014 17:46:10 -0400 Received: from mga09.intel.com ([134.134.136.24]:17059 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756789AbaDPVqH (ORCPT ); Wed, 16 Apr 2014 17:46:07 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,874,1389772800"; d="scan'208";a="494404870" From: Jani Nikula To: imre.deak@intel.com, Daniel Vetter Cc: David Airlie , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [Intel-gfx] REGRESSION 3.14 i915 warning & mouse cursor vanishing In-Reply-To: <1397591989.2715.18.camel@ideak-mobl> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <20140414164010.GA1019@falcon> <867g6ryd2e.fsf@hiro.keithp.com> <20140414185602.GA892@falcon> <20140415194303.GH1023@phenom.ffwll.local> <1397591989.2715.18.camel@ideak-mobl> User-Agent: Notmuch/0.17+162~g34940eaa1d37 (http://notmuchmail.org) Emacs/24.3.1 (x86_64-pc-linux-gnu) Date: Thu, 17 Apr 2014 00:46:00 +0300 Message-ID: <87ppkhaqxz.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 15 Apr 2014, Imre Deak wrote: > On Tue, 2014-04-15 at 21:43 +0200, Daniel Vetter wrote: >> On Mon, Apr 14, 2014 at 11:56:03AM -0700, Steven Noonan wrote: >> > On Mon, Apr 14, 2014 at 11:35:05AM -0700, Keith Packard wrote: >> > > Steven Noonan writes: >> > > >> > > > Was using my machine normally, then my mouse cursor vanished. After switching >> > > > to a VT and back to X11, my cursor came back. But I did notice a nasty trace in >> > > > dmesg (below). >> > > >> > > I don't think the trace below is related to the cursor disappearing. >> > >> > Any idea what the trace is all about then? Seems it has something to do >> > with runtime power management (maybe my aggressive kernel command-line >> > options are triggering it). >> >> Please test without them. Currently runtime pm should be disabled still on >> vlv (since it's incomplete in 3.14). If you've force-enabled that then you >> get to keep all pieces ;-) >> >> In general don't set any i915 options if you're not a developer or someone >> else who _really_ knows what's going on. > > Note that the lspci output and the > > [ 1795.275026] [drm:hsw_unclaimed_reg_clear] *ERROR* Unknown unclaimed > register before writing to 70084 > > line suggests HSW and the specs for ThinkPad Yoga suggests the same. But > I don't know how the vlv_* functions can possible end up in those traces > then, perhaps just a coincidence, random data on stack? I'm wondering the same. Perhaps double check your kernel build and modules are all right and matching? BR, Jani. > > For HSW the rc6 kernel option shouldn't make a difference. > > --Imre > > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Jani Nikula, Intel Open Source Technology Center -- 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/