From owner-freebsd-hackers Sat Oct 28 5: 7:10 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from altos.rsu.ru (altos.rsu.ru [195.208.252.79]) by hub.freebsd.org (Postfix) with ESMTP id BE30537B479 for ; Sat, 28 Oct 2000 05:05:51 -0700 (PDT) Received: from localhost (os@localhost [127.0.0.1]) by altos.rsu.ru (8.11.0/8.9.3) with ESMTP id e9SC5b563100 for ; Sat, 28 Oct 2000 16:05:41 +0400 (MSD) Date: Sat, 28 Oct 2000 16:05:37 +0400 (MSD) From: Oleg Sharoiko To: freebsd-hackers@freebsd.org Subject: Problem with 2 video cards: /src/sys/pci.c code question Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hello! I've just tried to install second video card into Intel L440GX+ based box running FreeBSD and this broke the system: the screen output is messed (even during device probing), some characters are not printed, scrolling doesn't work well and after some short time it dies with only 'reset' key working. I also noticed that kernel.GENERIC from 4.1-RELEASE works fine. I tried to compile different versions of kernel and found that my problem caused by the following change in src/sys/pci/pci.c (between 2000-09-02 and 2000-09-03): < * $FreeBSD: src/sys/pci/pci.c,v 1.141.2.2 2000/07/04 01:35:10 mjacob Exp $ --- > * $FreeBSD: src/sys/pci/pci.c,v 1.141.2.3 2000/09/01 23:29:34 msmith Exp $ 1082,1085c1082,1089 < if (type == SYS_RES_IOPORT && !pci_porten(cfg)) < return 1; < if (type == SYS_RES_MEMORY && !pci_memen(cfg)) < return 1; --- > if (type == SYS_RES_IOPORT && !pci_porten(cfg)) { > cfg->cmdreg |= PCIM_CMD_PORTEN; > pci_cfgwrite(cfg, PCIR_COMMAND, cfg->cmdreg, 2); > } > if (type == SYS_RES_MEMORY && !pci_memen(cfg)) { > cfg->cmdreg |= PCIM_CMD_MEMEN; > pci_cfgwrite(cfg, PCIR_COMMAND, cfg->cmdreg, 2); > } I've looked into the log and found this ---------------------------- revision 1.141.2.3 date: 2000/09/01 23:29:34; author: msmith; state: Exp; lines: +9 -5 MFC: fix up botched PCI configuration by the BIOS in the case where a resource has been allocated but its class is not marked as enabled in the command register. ---------------------------- So I'm wondering is this a bug or I should by some means disable first card. There're no any jumpers or bios options to disable video card. I suppose that kernel turns on the built-in video adapter and it conflicts with the one I've plugged in. I don't have strong skills in PCI programming so I'm asking for your help. Please CC: replies to my e-mail. I would greatly appreciate that and I hope to here your replies soon. -- Oleg Sharoiko. Software and Network Engineer Computer Center of Rostov State University. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message