[mythtv-users] Comcast STB upgrade breaks firewire channel changing

Christopher Meredith chmeredith at gmail.com
Tue Mar 8 20:43:12 UTC 2011

On Tue, Mar 8, 2011 at 10:04 AM, Stephen Otto <sotto at emsco.com> wrote:

> > About a week or two ago, Comcast sent out a ton of promotion material
> > pushing on-demand content. I didn't pay much attention to it. But
> > shortly after that, they pushed a software update to my STB (Cisco
> > RNG-150) that looks to be completely new. The layout and color of the
> > menus are completely different and the guide bears the "TV Guide"
> > logo. Anyway, this update also broke firewire channel changing. I have
> > been using 'mythchanger' with the -f 6 option to great effect. Now it
> > does not work at all. The script detects and unknown STB, but cannot
> > change channels on it.
> >
> >
> > Has anyone run into this? Is there a solution? Does anyone know
> > anything about this software "upgrade?"
> For the last month plus, my firewire capability has stopped work
> for exactly the same reason.  I had it working for almost 3 years
> prior to that -- and hadn't changed anything when it stopped working.
> I too would love to hear if anyone has solved this.  BTW:  see thread
> here
> http://www.gossamer-threads.com/lists/mythtv/users/457642?search_string=fire
> wire%20channel%20change<http://www.gossamer-threads.com/lists/mythtv/users/457642?search_string=fire%0Awire%20channel%20change>
> ;#457642
> Nasa
> _______________________________________________
> What are you using for a channel change script? 6200ch? If so, any chance
> that Comcast changed the Vendor ID or Model ID in your STB to something new
> with the update?

I've been using the mythchanger script referenced in the thread linked
above. I cycled through all the options to no avail. I've been assuming that
it shouldn't matter if Comcast only changed the Vendor or Model IDs because
those merely identify the device to the computer. I've been using the -f
option in mythchanger to force the protocol it uses, so detection of the
device should be irrelevant. Am I right about that?
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