[97163] in RedHat Linux List
Re: RH 5.1 on Dell XPS-R400: probs with IRQ sharing?
daemon@ATHENA.MIT.EDU (Jan Carlson)
Sun Nov 1 16:12:47 1998
Date: Sun, 01 Nov 1998 16:02:32 -0500
From: Jan Carlson <janc@iname.com>
To: redhat-list@redhat.com
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Reply-To: redhat-list@redhat.com
Scott Taylor wrote:
> I've pretty much exhausted the idea of trying to figure this out myself. I
> have a Dell Dimension XPS-R400 currently running NT that I'd like to set
> up as a dual boot machine running RH 5.1. I have sucessfully installed
> Linux, but when I start up using my boot floppy I end up with constantly
> scrolling output (appears to happen after initialization of the NIC) and
> never get to the login prompt. I believe this is due to an IRQ conflict
> between my network/graphics/scsi cards. I have a 3C905 NIC, a Diamond
> FireGL Pro (AGP) video card and an Adaptec 2940U scsi card. Under NT all
> three of these cards are using IRQ 10 and everything seems to be working
> fine. I assume in this case these devices are able to share this single
> IRQ? So what do I need to do to make Linux happy?
Set them up to use separate IRQs under NT first. Jumper each card for
Non-PNP, or run the config program from the card mfgr to set each
to Non-PNP, or try getting a Non-PNP version of some of the cards
if that's all you can do.
> I have tried going in
> to my bios and "reserving" IRQ 10, but then all the devices end up on
> another unused IRQ but are all still on the same IRQ. How can I force them
> to use unique IRQ's? I seem to have enough available IRQ's according to
> NT's Diagnotics app? Or, are there any options I can pass along to the
> kernel at boot time to resolve this conflict? I'd have to say this is the
> most troublesome Linux install I've ever had to deal with...
>
> Thanks for your help,
>
> Scott
>
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--
Jan Carlson
janc@iname.com Scarborough, Ontario, Canada
Mailed with Netscape 4.5 on Red Hat Linux 5.1
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