[mythtv-users] PVR-350 +Comcast

Brian Wood beww at beww.org
Sun Feb 5 04:09:37 UTC 2006

, 2006, at 8:42 PM, Art Fore wrote:

> On Sat, 2006-02-04 at 19:16 -0800, Art Fore wrote:
>> On Sun, 2006-02-05 at 02:25 +0000, Leigh wrote:
>>> Art Fore wrote:
>>> How have you got the cable connected to the 350? i.e which physical
>>> input on the card?
>>> In my setup I've got a normal terrestrial coax connected to  
>>> tuner0, and
>>> my cable box connected to Composite0 (via a SCART <--> SVID adapter
>> Don't have a cable box, never have had for over 10 years now. Have  
>> the
>> cable hooked directly to the tuner input on the card.
> cat /dev/video0 > test.mpg now works, but to watch tv from  
> mythfrontned,
> I get a black screen and the only way out is to kill it. I get the
> following message from the mythbackend
> 2006-02-04 19:29:16.632 Changing from None to WatchingLiveTV
> 2006-02-04 19:29:16.652 Unknown video codec
> 2006-02-04 19:29:16.652 Please go into the TV Settings, Recording
> Profiles and
> 2006-02-04 19:29:16.653 setup the four 'Software Encoders' profiles.
> 2006-02-04 19:29:16.653 Assuming RTjpeg for now.
> 2006-02-04 19:29:16.653 NVR: Error, unknown audio codec
> 2006-02-04 19:29:16.667 NVR: Won't work with the streaming interface,
> falling back
> VIDOCGMBUF:: Invalid argument
> Probably setup with mythtv-setup which is rather cryptic and have  
> tried
> both composite0 and tuner0, same thing. Is there a sample setup
> somewhere that one can look at?

Sounds like you have set up your capture card as a "v4l" type. You  
need to set it up as a "MPEG-2" type, the description of the card  
will mention the PVR-250/350 I believe. After positioning the cursor  
on the card type with the up and down arrows, use the right and left  
arrows to select the card type. It's a little tricky to know where  
you are in the screen sometimes, but you can figure it out.

> BTW, how do you change channels in mythtv when viewing a channel (If I
> ever get to that point)?

With the number keys on the keyboard, followed by CR (unless you have  
instant channel change enabled). You can also use a remote-control if  
you have set that up.

More information about the mythtv-users mailing list