From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754856Ab2IUM5y (ORCPT ); Fri, 21 Sep 2012 08:57:54 -0400 Received: from mga02.intel.com ([134.134.136.20]:5408 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754243Ab2IUM5x (ORCPT ); Fri, 21 Sep 2012 08:57:53 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,462,1344236400"; d="scan'208";a="195760052" Date: Fri, 21 Sep 2012 13:59:16 +0100 From: Alan Cox To: Markus H Cc: linux-kernel Subject: Re: gma500_gfx black screen Message-ID: <20120921135916.796d970e@bob.linux.org.uk> In-Reply-To: References: Organization: Intel X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.11; x86_64-redhat-linux-gnu) Organisation: Intel Corporation UK Ltd, registered no. 1134945 (England), Registered office Pipers Way, Swindon, SN3 1RJ Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > I could not find any indication that this problem has been fixed yet > in 3.6rc. Should be fixed in the very latest 3.6-rc. I got a report from someone else that I could duplicate and pin down exactly. It's made somewhat more complicated by the fact that another bug got introduced and then fixed across the same period. > I have to use a USB to serial converter as the tablet has no serial > port. I can't get a serial console at all with the Ubuntu stock kernel > probably because the pl2303 driver is not built into the kernel but > rather loaded as module. Correct > 1. What other debugging options do I have so I can help with fixing > the gma500_gfx driver. > 2. Are there any single commits I could try on top of e.g. a stock > 3.2.x kernel to see which one caused this regression? Can you try the latest 3.6-rc release. The commit in question is "gma500: Fix regression on Oaktrail devices"