[linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch

[Florian Schmidt]

On Fri, 23 Jul 2004 10:25:07 +1200
Andrew McGregor <andrew at indranet.co.nz> wrote:

> It is a PCI bus issue.  You simply don't have enough PCI bus cycles 
> available to do what you want to do.  The resource you're running out of is 
> bus bandwidth, and there's nothing to be done about it, other than remove 
> the PCI gfx card from the system.
> 
> If you get another dualhead AGP graphics card (anything will do), the 
> problem should go away.  We have a developer who does lowlatency 
> multichannel sound stuff on a machine with a Matrox G450 dualhead card no 
> problem.  I expect my own system (Radeon 9800 Pro and M-Audio 1010LT audio) 
> would be fine dualhead too, although I only run it singlehead at the 
> moment.  The 1010LT is 10 channels in and out of 24-bit 96kHz audio and 
> works great down to 1.5ms buffers, so it is no small bus load itself.

Hi,

thanks for the advice. I have tried some more pci cards and a very slow Virge 64 or something actually reduced the problem. Not completely though. I think i'll get me one of those G450 dual head cards..  

Florian Schmidt

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