23 Jul
2004
23 Jul
'04
10:21 p.m.
On Thu, 2004-07-22 at 19:16, Florian Schmidt wrote:
On Fri, 23 Jul 2004 10:25:07 +1200
Andrew McGregor <andrew(a)indranet.co.nz> wrote:
Be warned.. AFAIK, dual head on Matrox cards (At least the G400 series
anyway) requires the proprietary Matrox "HAL" library, which has caused
nothing but (severe) problems for everyone I've talked to who used it
(corrupt displays usually).
-DR-
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