Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264297AbUFCUsY (ORCPT ); Thu, 3 Jun 2004 16:48:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264276AbUFCUsX (ORCPT ); Thu, 3 Jun 2004 16:48:23 -0400 Received: from 213-229-38-18.static.adsl-line.inode.at ([213.229.38.18]:43738 "HELO home.winischhofer.net") by vger.kernel.org with SMTP id S264283AbUFCUsK (ORCPT ); Thu, 3 Jun 2004 16:48:10 -0400 Message-ID: <40BF8E10.5020107@winischhofer.net> Date: Thu, 03 Jun 2004 22:46:08 +0200 From: Thomas Winischhofer User-Agent: Mozilla Thunderbird 0.5 (X11/20040306) X-Accept-Language: en-us, en MIME-Version: 1.0 To: David Eger CC: adaplas@pol.net, David Eger , Andrew Morton , linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: [Linux-fbdev-devel] [PATCH] fb accel capabilities (resend against 2.6.7-rc2) References: <20040603023653.GA20951@havoc.gtf.org> <200406032307.13121.adaplas@hotpop.com> <1086285678.40bf676e1da4d@mail.theboonies.us> In-Reply-To: <1086285678.40bf676e1da4d@mail.theboonies.us> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1183 Lines: 30 David Eger wrote: > I coded your pseudocode up, and I'm convinced now that you and Thomas are right. > We should prefer panning when it's available > cat /usr/src/linux/MAINTAINERS is 0.3 seconds instead of 1.5 seconds. > > On the down side, panning makes screen corruption for me... time to investigate > to see if fbcon or radeonfb is to blame... perhaps panning is just incompatible > with accel engine at all in radeon... Sisfb has been using panning for ages and I never saw or heard about screen corruption. Looks very much like the radeon driver is skrewed... However, I don't think the engine is "incompatible" with panning. Panning means just to change the display start address, I can't imaging that the engine would care about that. What sort of "screen corruption" do you get? Thomas -- Thomas Winischhofer Vienna/Austria thomas AT winischhofer DOT net http://www.winischhofer.net/ twini AT xfree86 DOT org - 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/