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

[Nasa]

----- "Stephen Otto" <sotto at emsco.com> wrote:

> From: Christopher Meredith [mailto:chmeredith at gmail.com]
> Sent: Tuesday, March 08, 2011 3:43 PM
> To: Discussion about MythTV
> Cc: Stephen Otto
> Subject: Re: [mythtv-users] Comcast STB upgrade breaks firewire
> channel changing
> 
> 
> 
> 
> 
> 
> 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?
> 
No,

I was using sa3250hd script and tried the mythchanger script.


> 
> 
> 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’m not 100% sure but I know that I needed to update the code to get
> my box working (although I am not sure if originally I was using the
> –f option or not at the time). Try running mythchanger with a –v
> option and see what it reports. 

I tried this and got:

./mythchanger -c 220 -v

mythchanger .10f beta

Acquiring firewire handle... OK.
1 port(s) found

Acquiring handle on port 0... 1 devices detected.
STB Vendor ID: 0x1947 Model ID: 0x0be0, Scientific Atlanta Model SA3250HD


Skipping empty node 1
1 STB(s) found:
-------------
STB 1: port=0, node=0, changer=1, GUID=0x0019472d784a0000

Note: it didn't change channels...

Nasa