From owner-freebsd-current Thu Nov 4 10: 8: 1 1999 Delivered-To: freebsd-current@freebsd.org Received: from rah.star-gate.com (216-200-29-190.snj0.flashcom.net [216.200.29.194]) by hub.freebsd.org (Postfix) with ESMTP id 2250F14DF6 for ; Thu, 4 Nov 1999 10:07:59 -0800 (PST) (envelope-from hasty@rah.star-gate.com) Received: from rah.star-gate.com (localhost.star-gate.com [127.0.0.1]) by rah.star-gate.com (8.9.3/8.8.8) with ESMTP id KAA46989; Thu, 4 Nov 1999 10:07:14 -0800 (PST) (envelope-from hasty@rah.star-gate.com) Message-Id: <199911041807.KAA46989@rah.star-gate.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Kazutaka YOKOTA Cc: current@freebsd.org Subject: Re: vga driver and signal In-reply-to: Your message of "Thu, 04 Nov 1999 22:08:56 +0900." <199911041308.WAA16201@zodiac.mech.utsunomiya-u.ac.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 04 Nov 1999 10:07:14 -0800 From: Amancio Hasty Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > AFAIK, not all video cards generate the vertical retrace interrupt. > Even worse, some BIOSes have a configuration option which instract the > BIOS NOT to assign an IRQ to the PCI video card. > > I fully agree that the vertical retrace interrupt will be of great > value, but I wonder if it is really worth the trouble, because it might > be available in only few cards and systems at the end of the day... > > Well, I may be wrong :-) It is okay if the card does not have a vertical retrace option and if it is disabled by the BIOS I hope that the PCI header info for the vga card states that the interrupt is disabled. Just generate a patch and pass it on to the Xfree86 group . They are trying all sort of things to sync up the mouse with the vga vertical retrace interrupt. -- Amancio Hasty hasty@rah.star-gate.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message