Date: Tue, 10 Oct 1995 16:53:17 +0930 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: itsymbal@husc.harvard.edu Cc: questions@freebsd.org, hardware@freebsd.org Subject: Re: FreeBSD & ATI Mach64 install problem (follow-up) Message-ID: <199510100723.QAA11243@genesis.atrad.adelaide.edu.au> In-Reply-To: <199510100613.CAA00580@husc.harvard.edu> from "Sir Ilya Tsymbal" at Oct 10, 95 02:13:15 am
next in thread | previous in thread | raw e-mail | index | archive | help
Sir Ilya Tsymbal stands accused of saying: > > 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. It would appear that the Mach64 in your configuration conflicts with your serial ports. > 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. Leave sc0 at 0x60. It's not trying to talk to the special registers on the Mach64. > 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. IRQ 1 is the keyboard. If the Mach64 generates any interrupts, they'll be on IRQ 9. > 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. Are you certain about this? 0x2ec will conflict with sio3, which is at 0x2e8. I would expect this to cause some problems. Note that most/all S3 based video boards occupy this address, and thus conflict to some degree with com4. > Ilya Tsymbal -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] My car has "demand start" -Terry Lambert UNIX: live FreeBSD or die! [[
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199510100723.QAA11243>