Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932355AbbHNDti (ORCPT ); Thu, 13 Aug 2015 23:49:38 -0400 Received: from mail-ob0-f178.google.com ([209.85.214.178]:35210 "EHLO mail-ob0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753347AbbHNDth (ORCPT ); Thu, 13 Aug 2015 23:49:37 -0400 MIME-Version: 1.0 In-Reply-To: <20150812095907.GA3030@afzalpc> References: <1439353058-10001-1-git-send-email-acourbot@nvidia.com> <20150812060052.GA4242@afzalpc> <20150812073727.GA5630@afzalpc> <20150812095907.GA3030@afzalpc> From: Alexandre Courbot Date: Fri, 14 Aug 2015 12:49:17 +0900 Message-ID: Subject: Re: [PATCH] Revert "drm/nouveau/fifo/gk104: kick channels when deactivating them" To: Afzal Mohammed Cc: Alexandre Courbot , David Airlie , Ben Skeggs , Eric Biggers , "dri-devel@lists.freedesktop.org" , "nouveau@lists.freedesktop.org" , Linux Kernel Mailing List Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1267 Lines: 30 On Wed, Aug 12, 2015 at 6:59 PM, Afzal Mohammed wrote: > Hi, > > On Wed, Aug 12, 2015 at 04:40:57PM +0900, Alexandre Courbot wrote: > >> Great, thanks. Are you also on an optimus configuration with the >> NVIDIA card being the secondary GPU? > > Spec says graphic processor is NVIDIA GeForce NV14P-GV2 GT40M, system > is Lenovo E431 laptop. > > I am a stranger here, started Kernel journey towards north and reached > south since the system wasn't booting :), don't know how to find it is > an optimus configuration, if above details aren't enough, let me know > how to find out. Thanks for the details! An optimus configuration means that display and basic acceleration is provided by an integrated Intel graphics, and the NVIDIA GPU can be switched on/off dynamically to provide more power when needed. According to your laptop reference, this seems to be the kind of configuration you have. It is relevant because this issue seems to happen when the NVIDIA GPU is switched off during boot. -- 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/