[mythtv-users] ivtv PVR500 issues on Fedora 14

[Gary Buhrmaster]

On Sun, Feb 6, 2011 at 22:32, Jarod Wilson <jarod at wilsonet.com> wrote:
...
> There are, iirc, both 3.3v and 5v PCI slots. Its entirely possible that the
> PVR-500 requires a 5v slot, and at least the slot you're using right now is
> only capable of delivering 3.3v. That's about the only thing I can come up
> with anyway, if the F14 GA kernel (the one on the live CD) works on your old
> backend just fine, but not in the new one. That, or some other quirk with
> the new board that the card doesn't like for some reason. Dunno.

In *theory* the cards and slots are supposed to be keyed to
indicate support for 3.3v and/or 5.0v PCI signalling voltages,
and a card that only supported one was not able to be plugged
into the other type of slot.  There is also a "universal" card
layout that supported both signalling voltages.

However, as I recall, the x55 chipsets are PCI revision 2.3,
which only supports 3.3v signalling.  There are rumors that
some "universal" PCI cards required 5.0v signalling (and
are not as "universal" as advertised).  Perhaps the PVR-500
is one of those.

I suppose you could contact Hauppauge directly to ask regarding
PCI revision 2.3 compliance.

Good luck.

Gary