From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756090AbXD0Rd3 (ORCPT ); Fri, 27 Apr 2007 13:33:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756089AbXD0Rd3 (ORCPT ); Fri, 27 Apr 2007 13:33:29 -0400 Received: from mpc-26.sohonet.co.uk ([193.203.82.251]:36832 "EHLO moving-picture.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756090AbXD0Rd1 (ORCPT ); Fri, 27 Apr 2007 13:33:27 -0400 X-Greylist: delayed 1500 seconds by postgrey-1.27 at vger.kernel.org; Fri, 27 Apr 2007 13:33:27 EDT Message-ID: <46322E08.3040303@moving-picture.com> Date: Fri, 27 Apr 2007 18:08:24 +0100 From: James Pearson User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040524 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: X display shift with disabled console blanking Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Disclaimer: This email and any attachments are confidential, may be legally X-Disclaimer: privileged and intended solely for the use of addressee. If you X-Disclaimer: are not the intended recipient of this message, any disclosure, X-Disclaimer: copying, distribution or any action taken in reliance on it is X-Disclaimer: strictly prohibited and may be unlawful. If you have received X-Disclaimer: this message in error, please notify the sender and delete all X-Disclaimer: copies from your system. X-Disclaimer: X-Disclaimer: Email may be susceptible to data corruption, interception and X-Disclaimer: unauthorised amendment, and we do not accept liability for any X-Disclaimer: such corruption, interception or amendment or the consequences X-Disclaimer: thereof. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I have a problem whereby the X display 'shifts' to left when anything writes to /dev/console - where console screen blanking has been disabled i.e. doing something like: boot to run level 3 If not root, then make sure /dev/console is writeable login and type: setterm -blank 0 start X type into an xterm: echo "some random text" > /dev/console (may have to repeat the echo above a few times) ... and the whole X display jumps (and wraps) to the left I'm using a RHEL4 based distro with a vanilla 2.6.21 x86_64 kernel (although I've seen the problem with various x86_64 and i686 2.6.X kernels). I've seen this problem on a number of different nVidia cards - using the vesa driver (same problem occurs with nVidia's binary driver). I haven't tried using other makes of graphics cards. OK, this may be a strange combination of disabling the text console blanking and running X, but something isn't right somewhere ... Any ideas? Thanks James Pearson