[mythtv] Problems with saa7134

[Ryan McGuire]

In mythtvsetup, my video device is successfully probed, and the program
sees the inputs, but when I try to watch live tv, I get a black screen
and these error messages:

Backend:

2005-01-21 04:13:24 MainServer::HandleAnnounce Playback
2005-01-21 04:13:24 adding: localhost.localdomain as a client (events:
0)
2005-01-21 04:13:24 MainServer::HandleAnnounce Playback
2005-01-21 04:13:24 adding: localhost.localdomain as a client (events:
1)
2005-01-21 04:13:24 MainServer::HandleAnnounce Playback
2005-01-21 04:13:24 adding: localhost.localdomain as a client (events:
0)
2005-01-21 04:13:24 MainServer::HandleAnnounce Playback
2005-01-21 04:13:24 adding: localhost.localdomain as a client (events:
0)
2005-01-21 04:13:24 adding: localhost.localdomain as a remote ringbuffer
2005-01-21 04:13:24 Changing from None to WatchingLiveTV
strange error flushing buffer ...
VIDIOCSYNC: Input/output error
VIDIOCSYNC: Input/output error
VIDIOCSYNC: Input/output error
VIDIOCSYNC: Input/output error
VIDIOCSYNC: Input/output error
VIDIOCSYNC: Input/output error
VIDIOCSYNC: Input/output error
VIDIOCSYNC: Input/output error
VIDIOCSYNC: Input/output error
Multiple bttv errors, further messages supressed

Frontend:

2005-01-21 04:13:24 Connecting to backend server: 127.0.0.1:6543 (try 1
of 5)
2005-01-21 04:13:24 Using protocol version 13
2005-01-21 04:13:24 Using protocol version 13
2005-01-21 04:13:24 Using protocol version 13
2005-01-21 04:13:30 taking too long to be allowed to read..
2005-01-21 04:13:35 taking too long to be allowed to read..
2005-01-21 04:13:35 RemoteFile::Read() failed in
RingBuffer::safe_read().
2005-01-21 04:13:36 Opening OSS audio device '/dev/dsp'.
2005-01-21 04:13:36 Audio fragment size: 4096
2005-01-21 04:13:36 Using XV port 69
2005-01-21 04:13:36 Changing from None to WatchingLiveTV
2005-01-21 04:13:36 Audio buffer overflow, audio data lost!
pthread_setschedparam: Operation not permitted
2005-01-21 04:13:37 Running as SUID root would allow some threads to run
with realtime priority, improving video smoothness.
2005-01-21 04:13:38 Waited 2 seconds for data to become available,
waiting again...
2005-01-21 04:13:40 Waited 2 seconds for data to become available,
waiting again...
2005-01-21 04:13:42 Waited 2 seconds for data to become available,
waiting again...
2005-01-21 04:13:44 Waited 2 seconds for data to become available,
waiting again...
2005-01-21 04:13:46 RemoteFile::Read() failed in
RingBuffer::safe_read().
2005-01-21 04:13:46 Audio buffer overflow, audio data lost!
2005-01-21 04:13:46 Audio buffer overflow, audio data lost!


I already populated the sql database with channel listings, so that's
not the problem.  Any advice would be GREATLY appreciated.  Im not a
newbie at linux, but I am with mythtv.

Thanks, Ryan