[mythtv-users] Trouble with two HD-PVRs on one system

[John P Poet]

On Sun, Nov 1, 2009 at 10:23 AM, David Engel <david at istwok.net> wrote:
> On Sat, Oct 31, 2009 at 02:12:24PM -0600, John P Poet wrote:
>> I use two HD-PVRs on the same backend without any problems, but I do
>> NOT use any of the IR stuff.  With udev setup to map video[01] to be
>> consistent for each unit, everything works as expected.
>
> That's what I thought.
>
>> If it is not the IR stuff causing the problem, maybe it is a USB
>> issue?  Have you tried using different USB ports?
>
> I had time to do more testing this morning.  It does seem to be a USB
> problem.  Great, yet another hardware problem!
>
> I have 4 back panel USB ports.  I haven't tried all combinations yet,
> but one or both HD-PVRs act up when both are connected to the back
> panel.  If I move one HD-PVR to a front panel port, things seem to be
> stable, even with IR enabled.
>
> Do you know if two HD-PVRs would play nice with an unpowered USB hub?
> I'm finally happy with the cable management between my A/V stand and
> Myth backend and having to run a separate cable around to the front
> messes that up.  If it would work, I could mount a small hub on the
> back of the stand and run one USB cable to the back panel.

I have not tried that, but I could.  I have a hub around here somewhere ....

I will let you know.

John
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