[mythtv-users] Frontend for HD Content question.

Nick Ellson grimm at nickellson.com
Wed Dec 10 17:42:28 UTC 2008

LOL, if it's a "network" issue, I'll return my CCIE ;) I am running a 
Cisco 2950T-24, my Backend is on one of the Gigabit uplinks, my frontend 
and HDHR system are on two 100/Full access ports, no errors on any of the 
interfaces. (First thing I checked)

I have not had a chance to try recording with it yet, but I though of that 
too.. When I was populating the line-ups the second tuner would cause 
Mythtv-setup to crash so I have yet to get it working and that seems to be 
annoying the Record Programs function. I'll get that working and then try 
out the recording. I DID however watch HDTV directly to my windows laptop 
from the HDHR and it looks OK.


Nick Ellson
CCIE# 20018
MCSE 2000, Security+, Network+
Network Hobbyist, VFR Private Pilot.

On Wed, 10 Dec 2008, Drew Tomlinson wrote:

> Brad DerManouelian wrote:
>> On Dec 10, 2008, at 7:29 AM, Nick Ellson wrote:
>>> I just added a HDHomeRun box in preparation for Feb's switch to
>>> Digital
>>> OTA signals. So my existing MythTV system uses a backend with two
>>> PVR500's
>>> and two frontends with nVidia motherboards, specifically with the
>>> nVidia Corporation GeForce 7050 PV / nForce 630a (rev a2) Video
>>> display.
>>> When I use the MythTV Tuner to select my HDHomeRun Tuners, I see the
>>> HD
>>> content on my HDMI output, but it has a noticable jerkiness to it.
>>> Frame
>>> someone I know who recommended this MB for HD content (using it as an
>>> all-in-one myth system) has no issues so I was wondering if my setup
>>> probably requires just a bit of tweaking, or if it's the HDHomeRun
>>> network based stream that may be my issue.
>>> I am looking for some ideas on things I can look into?
>> You'll want to try different Playback Profiles. Start with Slim since
>> that works best for a lot of people.
>>> And, would I be correct in my assumption that to watch HDTV live, my
>>> Mythbackend is streaming the content from my HDHomeRun to hard disk,
>>> and
>>> then re-streaming that file to my FrontEnd for playback?
>> Yes.
> So do you have issues when watching pre-recorded content and the HDHR is
> not streaming at the same time?  If the issues are with two or more
> concurrent streams but not with one, then I'd highly suspect network
> bandwidth is the cause.  There are tools to monitor bandwidth but with
> standard home network switches, you can not span a port and thus would
> not see the entire picture, rendering those tools somewhat useless.  But
> if you had an old "hub" you could put in there...  :)
> Cheers,
> Drew
> -- 
> Be a Great Magician!
> Visit The Alchemist's Warehouse
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