(In reply to comment #23)
>
> Anyway, bug 6939 comes to mind, e.g., might be interesting to try if Option
> "RenderAccel" "off" makes a difference, although I'd expect that to affect MMIO
> as well.
Option "RenderAccel" "off" doesn't seem to make a difference.
Unfortunately, we don't have an answer yet from the kernel guys to whether AGP
bus mastering should prevent C3 at all.
(In reply to comment #23)
>
> Anyway, bug 6939 comes to mind, e.g., might be interesting to try if Option
> "RenderAccel" "off" makes a difference, although I'd expect that to affect MMIO
> as well.
Option "RenderAccel" "off" doesn't seem to make a difference.
Unfortunately, we don't have an answer yet from the kernel guys to whether AGP
bus mastering should prevent C3 at all.