Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751592AbaDXTkl (ORCPT ); Thu, 24 Apr 2014 15:40:41 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:34681 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751171AbaDXTkj (ORCPT ); Thu, 24 Apr 2014 15:40:39 -0400 Date: Thu, 24 Apr 2014 21:40:38 +0200 From: Pavel Machek To: Daniel Vetter Cc: Chris Wilson , intel-gfx , "Rafael J. Wysocki" , dri-devel , kernel list , Jiri Kosina Subject: [bisect result] Re: 3.15-rc2: i915 regression: only top 20% of screen works in X Message-ID: <20140424194037.GB30333@amd.pavel.ucw.cz> References: <20140423202248.GA3621@amd.pavel.ucw.cz> <20140423220952.GA3627@amd.pavel.ucw.cz> <20140424055023.GA31221@nuc-i3427.alporthouse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! > And if you can indeed reliably reproduce this a bisect could be really useful. And we have a winner here :-) Ok, it was not as painfull as I feared. It does not revert cleanly, but doing it by hand was not that bad. Best regards, Pavel a51435a3137ad8ae75c288c39bd2d8b2696bae8f is the first bad commit commit a51435a3137ad8ae75c288c39bd2d8b2696bae8f Author: Naresh Kumar Kachhi Date: Wed Mar 12 16:39:40 2014 +0530 drm/i915: disable rings before HW status page setup Rings should be idle before issuing sync_flush (in intel_ring_setup_status_page). This patch moves the ring disabling before doing the HW status page setup. Signed-off-by: Naresh Kumar Kachhi Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter :040000 040000 23f2763fe684882008ca395f38d0da1cf197a85e f1052c959b35a99ceae9886603086c09edee5df8 M drivers pavel@amd:/data/l/linux-good$ -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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/