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- From: maraman@en.ecn.purdue.edu (Jason J Maraman)
- Subject: Re: Still more XFree86 problems
- Message-ID: <1993Jan8.084149.19688@en.ecn.purdue.edu>
- Organization: Purdue University Engineering Computer Network
- References: <51098@shamash.cdc.com>
- Date: Fri, 8 Jan 93 08:41:49 GMT
- Lines: 34
-
- In article <51098@shamash.cdc.com> pbd@runyon.cim.cdc.com (Paul Dokas) writes:
- >I'm still having problems with XFree86. When ever I run 'startx'
- >or 'xinit' or 'X386 :0' the X server starts up, puts the screen
- >into graphics mode (not clear) and just hangs.
- >
-
- >BTW, my problems might be due to the com ports that I have in my system.
- >Here is a section of my config file:
- >
- > device com1 at isa? port "IO_COM1" tty irq 4 vector comintr
- > device com2 at isa? port "IO_COM2" tty irq 3 vector comintr
- > device com3 at isa? port 0x3e8 tty irq 4 vector comintr
- > device com4 at isa? port 0x2e8 tty irq 3 vector comintr
- >
- >com1 and com2 are on a multi-io board (ide, fd, 2serial, 1parallel, 1game)
- >and com3 and com4 are on a serial io card. Com3 is a 16450, and com4 is
- >a 16550. They are all found and configured correctly at boot time. My mouse
- >is on com1 and my ascii terminal is on com3.
-
- Because of the way ISA handles interrupts, it is not possible to
- reliably share interrupts among multiple cards. However, if all the ports
- are on the same card and the card is designed properly, then the ports can
- be shared (this assumes the device driver knows how to deal with this).
-
- If you want to use all your com ports, there is no reason why you can't
- use interrupts other than 3 and 4 by cutting the leader to the appropriate
- pin and soldering a wire from there to the interrupt line you want to use.
- It's really quite simple and I have it working on my machine. If you
- want more information on this then please email. Also, if you decide
- to do this and fry your board then don't blame me.
-
- ------------------------------------------------------------------------------
- Jason J. Maraman - maraman@en.ecn.purdue.edu
- Purdue University
-