[mythtv-users] HD-3000 analog tuner woes

[Steven Adeff]

On 3/10/06, Dylan R. Semler <dsemler at macalester.edu> wrote:
> I've got an HD-3000 and I'd like to use it as my analog tuner as well as
> HD, however, it's having a lot of trouble working in many different areas.
>
> I have it configured so that I have two input devices, a generic dvb
> tuner and a generic analog tuner.  When I start watch tv, it defaults to
> the digital tuner.  I then press 'Y' to change tuners when I want to
> watch analog.  Sometimes (50% of the time), this results in a crash of
> the backend and the computer becomes completely un-responsive for a
> while.  The backend log will print:
>
> 2006-03-10 21:06:02.020 adding: boron as a client (events: 0)
> 2006-03-10 21:06:02.030 TVRec(2): Changing from None to WatchingLiveTV
> 2006-03-10 21:06:02.031 Channel(/dev/video0) Error: SetInputAndFormat(0,
> ATSC)
>                         while setting format (v4l v2)
>                         eno: Invalid argument (22)
> 2006-03-10 21:06:02.032 Channel(/dev/video0): SetInputAndFormat(0, ATSC)
>                         Setting video mode with v4l version 1 worked
> 2006-03-10 21:06:02.032 Channel(/dev/video0) Error: SetInputAndFormat(0,
> ATSC)
>                         while setting format (v4l v2)
>                         eno: Invalid argument (22)
> 2006-03-10 21:06:02.032 Channel(/dev/video0): SetInputAndFormat(0, ATSC)
>                         Setting video mode with v4l version 1 worked
> strange error flushing buffer ...
>
> At this point, the computer is completely locked up.  Trying to ssh into
> the machine results in
> ssh: connect to host mythtv port 22: No route to host
> However, after some time (1-2 minutes), it seems to be able to recover.
> It will then spit out
>
> VIDIOC_DQBUF: Input/output error
> VIDIOC_DQBUF: Input/output error
> VIDIOC_DQBUF: Input/output error
> 2006-03-10 21:06:05.516 TVRec(2): Changing from WatchingLiveTV to None
>
> This leaves the frontend with just a black screen and no audio or video
> for a while.  Eventually it says, "The connection to the Master Backend
> has gone away for some reason... Is it running?"  ps -A seems to
> indicate that the backend is still running.  If I restart the frontend,
> it connects to the database but nothing seems to work, navigating takes
> a long time, and it will not watch live tv.  The backend is probably
> dead though, because sudo killall -9 mythbackend does not seem to phase
> it (i.e. it doesn't kill it).
>
>
> The log from the frontend is (after initially pressing 'Y' to switch to
> the analog tuner)
>
> 2006-03-10 22:11:16.912 Using protocol version 26
> 2006-03-10 22:11:17.250 Could not bind to UDP notify port: 6948
> 2006-03-10 22:11:19.361 RingBuf(/video/4011_20060310210602.nuv): Waited
> 2 seconds for data to become available...
> 2006-03-10 22:11:19.361 Checking to see if there's a new livetv program
> to switch to..
> 2006-03-10 22:11:37.250 TV Error: StartPlayer(): NVP is not playing
> after 20000 msec
> 2006-03-10 22:11:38.254 RingBuf(/video/4011_20060310210602.nuv): Waited
> too long for ringbuffer pause..
> 2006-03-10 22:11:39.259 RingBuf(/video/4011_20060310210602.nuv): Waited
> too long for ringbuffer pause..
> ...
> 2006-03-10 22:57:51.039 NVP::OpenFile(): Error, couldn't read file:
> /video/4011_20060310215035.nuv
>
>
>
> This isn't a hardware problem because the analog tuner works fine with
> tvtime.
>
> If anyone has any idea what's going on please enlighten me.

Dylan, are you running the more recent SVN with "better" support for
the HD3000 analog tuner? I ask, because without it MythTV isn't setup
to switch the modules between the DVB and V4L for that card. I don't
really know how the support for it in SVN works, if its complete...

Also, you understand that the analog tuner on the HD3000 will require
your CPU to do the encoding as there is no analog mpeg encoder on the
card?

--
Steve