From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petr Vandrovec Subject: Re: Matrox G550, dual head, 1680x1050 Date: Sun, 04 Mar 2007 20:59:34 -0800 Message-ID: <45EBA3B6.3060701@vc.cvut.cz> References: <200703021053.00955.hjk@linutronix.de> <200703021610.58188.hjk@linutronix.de> <20070302152414.GC907@code-monkey.de> <200703042247.21590.hjk@linutronix.de> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1HO5IT-0005q9-Be for linux-fbdev-devel@lists.sourceforge.net; Sun, 04 Mar 2007 20:59:41 -0800 Received: from mailgw.cvut.cz ([147.32.3.235]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1HO5IS-0003qH-Um for linux-fbdev-devel@lists.sourceforge.net; Sun, 04 Mar 2007 20:59:41 -0800 In-Reply-To: <200703042247.21590.hjk@linutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net Content-Type: text/plain; charset="iso-8859-1" To: hjk@linutronix.de Cc: Tilman Sauerbeck , linux-fbdev-devel@lists.sourceforge.net, xorg@lists.freedesktop.org Hans-J=FCrgen Koch wrote: > Am Freitag, 2. M=E4rz 2007 16:24 schrieb Tilman Sauerbeck: > Meanwhile I doubt this explanation. Here's what fbset has to say: > = > $ fbset -fb /dev/fb1 --show > = > mode "1680x1050-60" > # D: 135.501 MHz, H: 65.396 kHz, V: 59.997 Hz > geometry 1680 1050 1680 1050 32 > timings 7380 32 224 32 4 136 4 > rgba 8/16,8/8,8/0,8/24 > endmode > = > So, even fbset thinks it's 1680x1050. But where does the distortion come = > from??? Can you try setting vxres for second head from 1680 to 1696, or 1728? = Maybe X look at vxres and not at framebuffer line length (what fbset -i = reports for line length?) If you are using mga driver for second head in X, then probably X driver = does not know correctly what are hardware restrictions for second CRTC = (I think they've changed between G400 and G450), asks for 1680 but gets = 1664, and this causes those diagonal lines you see. Petr ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=3Djoin.php&p=3Dsourceforge&CID=3DDE= VDEV