From mboxrd@z Thu Jan 1 00:00:00 1970 From: Knut Petersen Subject: Re: BUG: fb_imageblit called before fb_check_var and fb_set_par function Date: Fri, 26 Aug 2005 20:21:06 +0200 Message-ID: <430F5D92.4080300@t-online.de> References: <430DB8E6.8000204@t-online.de> <430DD026.2070303@gmail.com> <430DEAD0.8070403@t-online.de> <430E094A.9030603@gmail.com> <430ED17E.6000504@t-online.de> <430F20D2.4060601@gmail.com> <430F43A7.5000103@t-online.de> <430F4AC2.70403@gmail.com> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1E8imY-0002SR-Sx for linux-fbdev-devel@lists.sourceforge.net; Fri, 26 Aug 2005 11:18:26 -0700 Received: from mailout04.sul.t-online.com ([194.25.134.18]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1E8imX-00010m-Gn for linux-fbdev-devel@lists.sourceforge.net; Fri, 26 Aug 2005 11:18:26 -0700 In-Reply-To: <430F4AC2.70403@gmail.com> Sender: linux-fbdev-devel-admin@lists.sourceforge.net Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="iso-8859-1"; format="flowed" To: "Antonino A. Daplas" Cc: linux-fbdev-devel@lists.sourceforge.net, Andrew Morton , benh@kernel.crashing.org > This has been discussed before. Not all hardware can do a set_par() > instantaneously, some may require seconds. And that will become a=20 > usability > problem. Just imagine switching from one console to another and it take= s > 5 seconds. That would be unacceptable, agreed. But it=B4s also not really acceptable= =20 to risk to execute a few dozend imageblits in redraw_screen() while the hardware might be in an=20 unusable state. Checking for that situation every imageblit would have a big performance penalty. knut ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practic= es Agile & Plan-Driven Development * Managing Projects & Teams * Testing & Q= A Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf