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Newsgroups: comp.unix.bsd Path: sserve!manuel!munnari.oz.au!uunet!cs.utexas.edu!natinst.com!bigtex!james From: james@bigtex.cactus.org (James Van Artsdalen) Subject: Using IRQ 2 & VGA Message-ID: <1992Jul19.114000.28123@bigtex.cactus.org> Keywords: 386bsd ne2000 Reply-To: james@bigtex.cactus.org (James Van Artsdalen) Organization: Institute of Applied Cosmology, Austin TX References: <greg.711512526@hibp1.ecse.rpi.edu> Date: Sun, 19 Jul 1992 11:40:00 GMT Lines: 18 In <greg.711512526@hibp1.ecse.rpi.edu>, greg@ecse.rpi.edu (Greg) wrote: > When I first installed 386bsd 0.1, my ne2000 card would not transmit. > It also sporadically gave error: isr 15 and error: isr 17 messages. > I suspected a problem with the interupts. My ne2000 was jumpered for > irq 2 and ioadx 0x300 as per the install notes. The only other boards in > the machine are the vga and the FD/HD serial/par do-it-all card. Some VGA cards use IRQ 2 for a vertical retrace interrupt. Even when the interrupt is not enabled in the VGA, some cards drive IRQ 2 inactive instead of leaving the signal tristate. If this is the problem, you can use Scotch tape to cover the IRQ 2 signal on the VGA's ISA connector. -- James R. Van Artsdalen james@bigtex.cactus.org "Live Free or Die" Dell Computer Co 9505 Arboretum Blvd Austin TX 78759 512-338-8789