[mythtv-users] Apple TV info

[jedi]

On Tue, Sep 09, 2008 at 12:26:20PM -0400, Scott D. Davilla wrote:
> >On Tue, Sep 09, 2008 at 06:36:29AM -0700, Brad DerManouelian wrote:
> >>  On Sep 9, 2008, at 5:57 AM, Jean-Yves Avenard wrote:
> >>
> >>  > Hi
> >>  >
> >>  > 2008/9/9 Paul Fine <pfine at comcast.net>:
> >>  >> I run Ubuntu on my AppleTV.  I think it takes about 3 minutes from 
> >>  >> cold
> >>  >> start to the MythTV menu, although I haven't timed it.  I am using
> >>  >> component video, so I can't answer the HDMI question.  I don't find 
> >>  >> the
> >>  >> navigation sluggish at all.
> >>  >
> >>  > Can you watch HD content with the Apple TV? The processor seems 
> >>  > rather slow
> >>
> >>  I'm running Mythbuntu on my AppleTV and can watch over the air HD with 
> >>  XvMC without a problem. I'm just starting with h.264 content and it's 
> >>  struggling to play that, but I think it's my display settings since 
> >
> >    ...something else I forgot to mention.
> >
> >    The AppleTV has a really crappy NIC chipset. It's sort of like a winmodem.
> >Thus, if the CPU goes into some sort of power saving mode (that may be the
> >wrong term for it), then your network performance goes straight into the
> >crapper. You basically have to lock the CPU into "fully awake mode".
> 
> It's not the fault of the chipset, it's the Linux driver that can't 
> deal with the CPU going into C3. Basically, the driver does not know 
> about ACPI C1/C2/C3 power changes.

    Why should that bother the NIC? Even if the CPU is stuck in ACPI
state C3, the NIC performance shouldn't be total crap. That makes it
sound like the "winmodem" remarks you see about that chipset on the
web are pretty much on the mark.