[linux-audio-dev] best option for audiovisual synchrony
rlrevell at joe-job.com
Sun Oct 22 11:42:16 EDT 2006
On Sun, 2006-10-22 at 15:00 +0200, Dominique Michel wrote:
> Le Sat, 21 Oct 2006 11:59:14 -0400,
> > I think any Linux system with DRI can do this. Check /proc/interrupts -
> > if your video card is listed, then you should have vsync interrupt
> > capability.
> > Lee
> I have a nvidia card in my box. If I use the nvidia driver, I get it
> in /proc/interrupts, but if I use the nv driver, the card don't use an IRQ.
> I am not a gamer, and for me, the nv driver is just better because I can use
> this IRQ for another hardware and get a better IRQ setup with my rt kernel and
> that already at the PIC level.
> If compatibility is a concern, I think at it will be better to use a mechanism
> provided by X that will exist on every single linux box, as to rely on a
> hardware mechanism that will not be found on every system.
Interrupts are a hardware mechanism by definition. X cannot provide one
if the hardware lacks this feature (or the driver fails to enable it)
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