by Hi to all.
I have a problem with the cards and the IRQ's in my machine. 15 IRQ's
are not enough!
I have, beside other cards, a Pro Audio Spectrum 16 sound card with
a SCSI controller on it, where I have my CD-ROM connected.
This components worked under Linux very well. Last week I added a
second serial port with two 16450 UART's and a LPT port on it.
Since this day, Linux can not find my sound card. The SCSI controller
on the sound card is still working.
Following is a table of the cards, used IRQ's, DMA's and ports (as
far as known):
IRQ DMA Port Description
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0 Hardware timer
1 Keyboard
2 redirected to 9
3 2f8 COM2 (modem connected)
4 3f8 COM1 (serial mouse connected)
4 3e8 COM3 (not useable)
5 2e8 COM4 (serial terminal connected)
5 3 gscan (handyscanner not used under Linux)
5 3 220 Sound Blaster 8bit (emulation not used under Linux)
5 278 LPT2 (not used)
6 Floppy controller
7 378 LPT1
7 3 330 QIC-80 streamer controller
8 real time clock
*9 should be free but can not use!
10 340 NE2000 ethernet card
11 used by vga card (PCI)
*12 should be free but can not use!
13 Mathematic processor
14 IDE0 controller (HD)
15 IDE1 controller (HD not used)
15 7 388 Pro Audio Spectrum 16
15 388 SCSI controller (PAS16)
The SCSI controller is not jumper able nor can I change IRQ via
software. Also the IDE1 is not configureable. With DO$ and
Window$ all components work fine.
I tried to configure the sound card to other IRQ's, but nothing
worked. When I remove the second serial card, Linux will find the
soundcard and works with it. I can not configure the sound card to
the IRQ's 9 and 12. The sound card is only by software configure-
able, so I have to boot DO$ to configure it. What components use
the IRQ's 9 and 12?
I don't want to disable the SB8 emulation, because some DO$ games
uses it. I have already disabled the MPU-401 emulation.
I'm using currently Linux v 1.2.11 with a.out. My machine is a
Pentium/60 with 8M. of RAM. Only the VGA card is on the PCI bus, all
other cards are ISA.
It seems to me, that Linux can use an IRQ only for one thing and is
not able to share IRQ's. Is that really true?
Why does Linux not find my sound card when I install a second serial
card? I think this card can not really make a conflict with my sound
card, or I'm wrong?
Any help would be greatly apreciated. Please Post AND email me if
possible.
Thanks in advance.
--
Theofilu Andreas
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Enjoy the science of Linux!
Genie?e die Wissenschaft von Linux!
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