Re: [Dri-users] IRQ problems

[Damon L. <dlo...@di...>]

On Sun, 11 Jun 2000, Damon LoCascio wrote:

> On Sun, 21 May 2000, Emil Ong wrote:
> 
> > Hello,
> > 
> > I tried compiling and running the X server for my G400 as described the
> > howto. Everything seemed to compile fine, but when I ran it, the server
> > was ridiculously slow.  I ran dmesg and found the following:
> > 
> > [drm:mga_dma_quiescent] *ERROR* irqs: 0 wanted 0
> > [drm:mga_dma_quiescent] *ERROR* lockup
> > 
> > This message appeared many times.  Is this a bug in the driver or do I
> > have configuration issues?  (BTW, I'm running 2.3.99-pre8 with a G400 and
> > I didn't see any other errors; all the modules seemed to load just fine.
> > I tried before with 2.3.99-pre5 and got the same problems.)
> > 
> > Thanks,
> > Emil
> 
> Ah hah... methinks we might be having similar problems. I get exactly the
> same message running 2.4-test1. Everything appears to compile and install
> fine other than the Xserver is EXTREMELY slow to respond (obviously the
> IRQ conflict)
> 	I thought perhaps it was becasue I didn't assign an IRQ for VGA in
> the BIOS but no joy even changing that.
> 
> 	FWIW here are dumps from proc/dri?
> 
 < BIG _SNIP >


	Ok totally redundant sending anything about the DRI driver. This
is a hardware conflict. Simply put AGP is sharing an IRQ qith my SCSI
controller. WHY though, is another question.

	Does anyone know how to specify what IRQ AGP should/could use? I
have 10 & 11 free and it should really be using either of them. FYI this
question was posted on the dri-devel list as well. Perhaps it should be
added to a FAQ somewhere?

	Check /proc/pci and see if/what your Matrox is using. Then check
/proc/pci and see if it clashes with anything. If you can reallocate your
resources by whatever means then fine, else moving cards around will help
allocate different ones. I unfortunatly cannot move my cards around due to
physical contraints. So if anyone with PCI/AGP irq setting experience is
reading, share your wisdom with us ?

-- 
===

"If you can keep your head when all about you are losing theirs... you're
missing something IMPORTANT!"
                                Rob. (prolly teefed tho')