From owner-freebsd-hackers@FreeBSD.ORG Tue Apr 22 08:55:57 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3716E37B404 for ; Tue, 22 Apr 2003 08:55:57 -0700 (PDT) Received: from accms33.physik.rwth-aachen.de (accms33.physik.RWTH-Aachen.DE [137.226.46.133]) by mx1.FreeBSD.org (Postfix) with ESMTP id F3D5643FE0 for ; Tue, 22 Apr 2003 08:55:55 -0700 (PDT) (envelope-from kuku@accms33.physik.rwth-aachen.de) Received: (from kuku@localhost) by accms33.physik.rwth-aachen.de (8.11.6/8.9.3) id h3MFtsJ11124 for hackers@freebsd.org; Tue, 22 Apr 2003 17:55:54 +0200 Date: Tue, 22 Apr 2003 17:55:54 +0200 From: Christoph Kukulies Message-Id: <200304221555.h3MFtsJ11124@accms33.physik.rwth-aachen.de> To: hackers@freebsd.org Subject: DE203 (le0) - strange bus crosstalk? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Apr 2003 15:55:57 -0000 I have a DEC 203 lance (ISA) card in a 5.0R server and I recently received a fix from the driver author that enabled the driver again under 5.0. I'm now observing a very strange behaviour under X11 that went away immediately after I took out the card of the system. With the card in place and a serial mouse at /dev/ttyd0 or /dev/cuaa0 moving the mouse caused pixels arbitrarily being set on the screen. Moreover scrolling a window in the webbroswer caused the browser contents foobared (f*cked up beyond any recognizability). Like some screensaver does when it makes the screen look paralyzed. I first swapped the Graphics card, an ELSA Syngery 8, against an ELSA Winner 1000/T2D (that is a S3Trio64DX/V2). WIth that latter card I had terrible trouble with XFree86-4.2.1 under 5.0R. I only got two modes from XFree86 -configure which were 640x480 and 320x240. When I moved the mouse with that graphics card in place it resulted in flickering of the X screen from dark to normal with every other mouse movement. I then removed a 3COM 3C905 to no avail until I found that the DE-203 was the culprit. Question is: Is it the ISA memory of the card (d8000-dffff ?) that caused the trouble or is it something else (I/O, irq)? Anyone seen this before? -- Chris Christoph P. U. Kukulies kukulies@rwth-aachen.de