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#! rnews 1690 bsd Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!news.kei.com!newshost.marcam.com!usc!math.ohio-state.edu!magnus.acs.ohio-state.edu!cis.ohio-state.edu!nntp.sei.cmu.edu!bb3.andrew.cmu.edu!cantaloupe.srv.cs.cmu.edu!das-news2.harvard.edu!fas-news.harvard.edu!usenet From: itsymbal@husc.harvard.edu (Sir Ilya Tsymbal) Newsgroups: comp.unix.bsd.freebsd.misc Subject: FreeBSD & ATI Mach64 install problem (follow-up) Date: 10 Oct 1995 06:13:16 GMT Organization: Harvard University Lines: 25 Message-ID: <45d2ts$a3j@decaxp.harvard.edu> Reply-To: Ilya Tsymbal < itsymbal@husc.harvard.edu > NNTP-Posting-Host: itsymbal-2.student.harvard.edu Mime-Version: 1.0 X-Newsreader: WinVN 0.93.14 I have been having a problem installing FreeBSD with Mach64 card. During the start-up phase when hardware is probed, the screen either goes blank or (depending on the monitor) shows lines. A different cideo card (Diamond SpeedStar) works fine. I have found that if I start with -c flag during boot and disable ALL com ports - sio0-3 then the card behaves appropriately. I do need to use a mouse ( at least) and preferably a modem. The ATI install disk claims the card is using Base I/O address 0x2ECh; however, with all com ports disabled it works fine if sc0 is set to either 0x2ec (card's setting) or 0x60. I have found no sure way to tell which IRQ the card is using; it seems to work fine with sc0's irq set to 1. If I leave any one com port enabled, the card will mess up. Wether or not the particular com port is actually present does not seem to make a difference. That's all the information I have; I would appreciate any input. Thank you, Ilya Tsymbal