lkml.org 
[lkml]   [2004]   [Jul]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch
From
Date
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


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:04    [W:0.658 / U:0.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site