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

[Gabe Rubin]

On Tue, Mar 8, 2011 at 12:43 PM, Christopher Meredith
<chmeredith at gmail.com> wrote:
>
>
> 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;#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?
>

I recall having to modify the source code for one of the firewire
channel changing scripts and recompile it because the device id (model
and/or vendor, not sure which) was not in the code already.  I forgot
exactly what I was looking for, but I think plugreport gave me some
information.  I also think I had to run the first version in verbose
mode to get some of the needed info.

I don't remember the exact details, but I posted what I did here:
http://www.gossamer-threads.com/lists/mythtv/users/449440?search_string=pace;#449440

Hope it works for you.