[LAU] Video Drivers and Audio, ZaReason, and MacMini

[Paul Davis]

On Wed, Apr 6, 2011 at 2:02 AM, Clemens Ladisch <clemens at ladisch.de> wrote:

>> I know in the past I heard bad things about the binary proprietary
>> drivers and realtime audio(freezing, xruns, etc).  Is this still the
>> case?
>
> Both nvidia's and fglrx's interrupt handlers are evil.  However, you
> should be able to minimize their effects on the rest of the system by
> using a multi-core CPU (not that you could avoid this nowadays) and
> message-signaled interrupts (the nvidia driver needs the module option
> "NVreg_EnableMSI=1" to enable them).  In the past, there were problems
> with MSI on some chipsets, but nowadays it works.

clemens, two questions:

  1) where does this need to be given to the module? is this a kernel
module option or
       a X Window option?
  2) does nouveau have any way to do this or does it not matter
because of the way it
        handles interrupts?