[mythtv-users] HD-3000 analog tuner woes

[Dylan R. Semler]

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