[Openchrome-users] CN700 problems.

[Jon Nettleton]

On Sun, 2006-12-17 at 14:34 +0100, Benno Schulenberg wrote:
> Christiaan van Dijk wrote:
> > At first I could generate weird DMA/IRQ error messages on the HDD
> > in the log files when doing background disc I/O and heavy screen
> > access.
> 
> Do you still have the old logs that contain these messages?  If so, 
> please post them.  Even if no one recognizes them, it will give 
> Google something to find later.
> 
> > What did I try; Disabled vertical interrupt, disabled DMA
> 
> If you disabled DMA and the hangs still occurred, then it cannot be 
> a DMA problem, it seems to me.
> 
> > Right now I'm stuck, I get the impression there's some kind of
> > DMA conflict. What can I do to get any  more information on
> > what's going on?
> 
> Are disk drive and VIA chip maybe on the same interrupt?  See the 
> output of 'cat /proc/interrupts'.  If so, assigning a different 
> interrupt in the BIOS might help.
> 

Or you can try adding Option "DisableIRQ" "true" to your via device
secton in xorg.conf. That might help troubleshoot the problem.

Jon