[TriLUG] Speaking of weird hardware problems

[Marty Ferguson]

Roy,

Two more ideas...

(1)
By "going graphical" you mean that you enter runlevel5, right?
You have the X Window System root screen plus other stuff, right?
And a non-responsive keyboard and mouse, right?
And CTRL-ALT-Fx does not give you a tty console, right?

First debug... log in as root at tty1 in runlevel 3.  Run X with no
adornment.
# X

Try to get back to tty1  CTRL-ALT-F1
This will isolate the domain of the problems and whether they lie within the
X Window System/Xserver
itself, or with other desktop issues, X/Gnome/KDE session management etc.

(2)
================
A follow on suggestion... poke around in /proc/interrupts, iomem, ioports
and such.  You may need to provide some PnP overrides using (yech)
the isapnp utility.  I've seen video rob the IRQ2 (cascade)
for synch timing.  The AHA-1520 could be inserting itself in
somewhere in the IRQ priority.

Marty

-----Original Message-----
From: Roy Vestal [mailto:rvestal at trilug.org]
Sent: Thursday, April 22, 2004 10:00 AM
To: marty.ferguson at pobox.com; Triangle Linux Users Group discussion list
Subject: Re: [TriLUG] Speaking of weird hardware problems


I have one PCI card, the NIC. The SCSI is an AHA-1520 ISA PnP card. I've got
a 2940 around here somewhere, I just didn't want to waist it on a CD tower.
----- Original Message -----
From: "Marty Ferguson" <marty at rtmx.net>
To: "Triangle Linux Users Group discussion list" <trilug at trilug.org>
Sent: Thursday, April 22, 2004 10:40 AM
Subject: RE: [TriLUG] Speaking of weird hardware problems


> Roy,
>
> Did you try just swapping around PCI cards into different slots?
> The enumeration of the IO space is kind of arbitrary.  There are
> more sophisticated ways to eliminate these problems, if indeed these
> problems are due to PCI bus mastering and priority. But the wrote
> approach of just trying different slots untill you get a combination
> that works properly is the conventional wisdom.
>
> Marty
>
> -----Original Message-----
> From: trilug-bounces at trilug.org [mailto:trilug-bounces at trilug.org]On
> Behalf Of Roy Vestal
> Sent: Thursday, April 22, 2004 9:22 AM
> To: Triangle Linux Users Group discussion list
> Subject: [TriLUG] Speaking of weird hardware problems
>
>
> Ok, here's a weird one.
>
> The LVM machine that I mentioned earilier this week, well, yeah, they gave
> me another old box to replace it. So I moved my nic and good drives and
scsi
> card. I loaded FC1 AND WBEL on this thing. Whenever I went graphical, I'd
> loose the mouse and keyboard.
>
> After many hours/days of pulling hair, rebuilding the os, removing
modules,
> unloading services, I started trying hardware. I removed the SCSI card
> (AHA-1520) that I hang a CD tower off and it worked!  I now have graphical
> keyboard and mouse!
>
> Any suggestions?  BTW, I'm tossing the card.
>
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