[AG-TECH] RH 7.1 and video instability

[Robert Olson]

Oh, that reminds me. Ran across this article the other day:

http://www-106.ibm.com/developerworks/linux/library/l-hw2.html

 From its intro:

>One of Linux's claims to fame is its legendary stability. But the most 
>stable operating system in the world won't do you any good if your 
>hardware is defective or misconfigured. In this article, Daniel Robbins 
>shares his experiences in getting his NVIDIA TNT graphics card working 
>under Linux using NVIDIA's accelerated drivers. As he does, he'll show you 
>how to diagnose and fix IRQ and PCI latency timer issues -- techniques you 
>can use to ensure that your systems don't experience lock-ups, 
>inconsistent behavior, or data loss.

Another piece of information folks should send when debugging hangs or 
crashes is the interrupt assignments, like so (from the FL Library video 
capture machine):

$ cat /proc/interrupts
            CPU0       CPU1
   0:   53452187   53423538    IO-APIC-edge  timer
   1:        148        129    IO-APIC-edge  keyboard
   2:          0          0          XT-PIC  cascade
   8:          0          1    IO-APIC-edge  rtc
   9:   93086119   93066418   IO-APIC-level  bttv, bttv
  10: 1144679067 1144195741   IO-APIC-level  eth0
  11:   46647656   46655902   IO-APIC-level  bttv
  12:        614        581    IO-APIC-edge  PS/2 Mouse
  13:          1          0          XT-PIC  fpu
  14:    4759600    4740341    IO-APIC-edge  ide0
  15:   46651792   46617554   IO-APIC-level  bttv
NMI:          0
ERR:          0

--bob

At 04:29 PM 8/14/2001 -0700, Wesley Lau (DSD student -DAA) wrote:

>I suspect my video capture box instability is due to an interrupt
>conflict.  I am using three WinTV Hauppauge cards in an Asus P3V4X MB.
>Acording to /proc/pci, two TV cards and the USB controller are sharing
>IRQ 9, and one TV card and ethernet card are sharing IRQ 5.
>
>I'll try disabling the USB controller and removing one of the unused TV
>cards (on IRQ 9) and see what happens.  My video machine has mysteriously
>begun working again, btw.  Anyone know how I might force the TV cards to
>use different interrupts?  The TV cards have no jumpers and are all PCI.
>
>thanks
>wes
>
>On Tue, 14 Aug 2001, Randy Groves wrote:
>
> > I'm running my video box (am I assuming correctly that you mean the video
> > capture box?) on 7.1 and have had no problems.  I have been keeping the
> > installation up to the latest versions on Robert's Linux site (well at
> > least current as of 7 weeks ago, before my vacation).  We're using the
> > Hauppage 401 cards.
> >
> > -randy
> >
> > At 01:06 PM 8/14/2001 -0500, Robert Olson wrote:
> > >That's been a niggling worry of mine with 7.1, especially since I've not
> > >run a 7.1 node in-house here. I hope to install 7.1 on our PortaAG node
> > >and see what happens. (I tried some short-term tests that turned out 
> okay,
> > >but not really any heavy use).
> > >
> > >What hardware are you running with?
> > >
> > >--bob
> > >
> > >At 10:59 AM 8/14/2001 -0700, Wesley Lau (DSD student -DAA) wrote:
> > >>Hello,
> > >>
> > >>I upgraded my ag node to RH 7.1, and while the audio machine works fine
> > >>(after a few driver issues), the video machine is quite 
> unstable.  After a
> > >>fresh install, it works for a while then completely freezes up, requiring
> > >>a hard reboot.  After that, the video box freezes up everytime I 
> enter the
> > >>Lobby, no matter how many reboots.  Anyone know why and are there any
> > >>solutions?  I think I'll have to downgrade to the 6.2 iso.
> > >>
> > >>thanks
> > >>Wesley Lau
> > >
> >
> >