From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761941AbYFMQmn (ORCPT ); Fri, 13 Jun 2008 12:42:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759194AbYFMQmX (ORCPT ); Fri, 13 Jun 2008 12:42:23 -0400 Received: from hpsmtp-eml11.kpnxchange.com ([213.75.38.111]:43928 "EHLO hpsmtp-eml11.kpnxchange.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758749AbYFMQmV (ORCPT ); Fri, 13 Jun 2008 12:42:21 -0400 From: Frans Pop To: Jesse Barnes Subject: Re: fb layer & ioremap_wc Date: Fri, 13 Jun 2008 18:42:15 +0200 User-Agent: KMail/1.9.9 Cc: "Pallipadi, Venkatesh" , linux-kernel@vger.kernel.org, "Ingo Molnar" , "Packard, Keith" , "Yinghai Lu" , linux-fbdev-devel@lists.sourceforge.net References: <200805022122.03576.elendil@planet.nl> <200805052059.01535.elendil@planet.nl> <200805051204.49135.jesse.barnes@intel.com> In-Reply-To: <200805051204.49135.jesse.barnes@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200806131842.16619.elendil@planet.nl> X-OriginalArrivalTime: 13 Jun 2008 16:42:19.0129 (UTC) FILETIME=[71EC9690:01C8CD74] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday 05 May 2008, Jesse Barnes wrote: > On Monday, May 05, 2008 11:59 am Frans Pop wrote: > > On Monday 05 May 2008, you wrote: > > > On Monday, May 05, 2008 10:32 am Frans Pop wrote: > > > > I suspect it could be vesafb/fbcon related instead. Normally I > > > > boot my system with 'quiet vga=791', i.e. with vesafb. I then see > > > > the artifacts. > > > > > > > > When I boot with 'video=vfb:off', I do _not_ get the artifacts > > > > when X exits. > > > > > > Ahhh, I missed that part of your config. That could definitely > > > have an effect on things... You'll probably want something like > > > the attached > > > > Not sure what to make of this. > > With your patch I still get the artifacts, but they are displayed a > > lot shorter. I get only a flash instead of a-2 seconds. > > Hm, so I guess some other user is still using UC on the region. [Note > to fb list: the patch just made vesafb use ioremap_wc instead of > ioremap). AFAIK there has been no progress on this issue, which is now listed on the regression list for .26 [1]. As there has been no response from any fb devs, is someone else maybe willing to have a closer look at this? I'm still seeing the artifacts with -rc6 and the severity seems to depend on what was last displayed: sometimes the whole display is covered with colored nonsense, artistic maybe but not desired... Cheers, FJP [1] http://bugzilla.kernel.org/show_bug.cgi?id=10843