On Mon, Mar 10, 2008 at 12:56:17PM -0500, Lee Revell wrote:
On Sun, Mar 9, 2008 at 3:15 AM, James Stone
<jamesmstone(a)gmail.com> wrote:
On Sat, Mar 08, 2008 at 07:03:30PM -0500, Lee
Revell wrote:
On Sat, Mar 8, 2008 at 2:58 AM, James Stone
<jamesmstone(a)gmail.com> wrote:
Hi,
I am wanting to use the eeepc for a mobile sound generation unit,
but unfortunately the gfx card and sound card share the same
interrupt.
This is not necessarily a showstopper. At least in theory. Do you
have any empirical evidence that it's a problem for you?
xruns..
OK. And you're sure the IRQ priorities were set correctly, realtime
kernel used, JACK in realtime mode, etc?
Yes. but IRQ tuning is not much use with the video on the same
interrupt as the sound card. Basically whenever a widget moves,
sound dropout occurs.
I would think that if you can disable the VSYNC interrupt from the gfx
card, that it would be even less of a problem. In my experience,
VSYNC interrupts on Linux don't help anyway - I've compared the
results with and without it enabled on both ATI and NVIDIA cards and
the display tears horribly (esp. when playing movies or moving windows
quickly) either way.
Sounds good. How do I disable that?
In the control panel for your video card. nvidia-settings for nvidia,
amdcccle for ATI, no idea for Intel.
I am not sure it is possible, but I will do some more digging.
James