[TriLUG] Speaking of weird hardware problems

Roy Vestal rvestal at trilug.org
Thu Apr 22 13:09:21 EDT 2004


I did try this before the post.

Yes they kybd and mouse work in rc3, but if i startx in rc3 it looses
keyboard and mouse. All I have to do is remove the SCSI card and the
problems go away.
----- Original Message ----- 
From: "Marty Ferguson" <marty at rtmx.net>
To: "Trilug Discussion" <trilug at trilug.org>
Sent: Thursday, April 22, 2004 11:23 AM
Subject: RE: [TriLUG] Speaking of weird hardware problems


> 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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