Florian Schmidt wrote :
Hi,
interesting that you mention the Xserver. I use a dual graphics card setup atm [Nvidia
GF3 TI and some matrox pci card]. The nvidia card seems to work flawlessly even with HW
accelleration [i use nvidias evil binary only drivers]. The matrox card OTH disturbs the
soundcard severely. Whenever i have activity on my second monitor i get sound artefacts in
jack's output [no cracklling, it's rather as if the volume is set to 0 for short
moments and then back to normal]. There's a certain chance that this artefact produces
an xrun. I suppose it's because the card is on the pci bus.
I figured it's maybe an irq issue problem, but whatever slot i put the gfx card in -
it made no difference [btw: how do i find out which resources this card uses? it is not
shown by /proc/interrupts]. I also tried putting the soundcard in many different slots to
maybe get it on higher prio irq, but it always gets irq 5 [according to
/proc/interrupts]..
Should i try a different 2nd gfx card? Should i avoid pci gfx cards at all costs? Will i
just have to live w/o second monitor? How do i find out which hw resources X is really
using?
Florian Schmidt
You could try to adjust the pci latency timer value of your graphic card
and sound card, see this link for a paper on the subject by Daniel
Robbins :
http://www-106.ibm.com/developerworks/library/l-hw2.html
Thomas