[mythtv-users] strange problem.. black screen when watching live tv

[Craig Tinson]

sorry if this goes through twice - sent it first time before confirming
mailing list subscript! (doh!)

------------------------------

hey guys..

new to the list so sorry if this is a dumb question.. I've searched the
archive but can't find anything relating to this..

ok.. I've got myth installed.. used apt-get to install it and after a
few dep problems (to do with apt, not myth) I got it installed..

I've run through the whole mythfilldatabase routine and the database
seems to be all populated... etc etc..

When I start frontend and try to watch live tv all I get is the audio..
with a black monitor...

frontend log looks as follows:

------------------------------------------------
[root at craig html]# mythfrontend
2003-12-15 11:08:33 Enabled verbose msgs : important general
mythtv: could not connect to socket
mythtv: No such file or directory
Failed to create lirc socket for mythtv
2003-12-15 11:08:44 Connecting to backend server: 127.0.0.1:6543 (try 1
of 5)
2003-12-15 11:08:44 Opening OSS audio device '/dev/dsp'.
player: Can't open audio device: /dev/dsp
2003-12-15 11:08:46 Using XV port 61
2003-12-15 11:08:47 Changing from None to WatchingLiveTV
------------------------------------------------

I don't know what it's talking about with the "could not connect to
socket" and I don't think it's the backend because the backend is
picking up... during the same session the backend log looks as follows:

------------------------------------------------
[root at craig root]# mythbackend
Starting up as the master server.
2003-12-15 11:10:40 Enabled verbose msgs : important general
2003-12-15 11:10:42 Found changes in the todo list.
2003-12-15 11:10:57 MainServer::HandleAnnounce Playback
2003-12-15 11:10:57 adding: craig.8010.co.uk as a player 0
2003-12-15 11:10:57 MainServer::HandleAnnounce Playback
2003-12-15 11:10:57 adding: craig.8010.co.uk as a player 1
2003-12-15 11:10:57 MainServer::HandleAnnounce Playback
2003-12-15 11:10:57 adding: craig.8010.co.uk as a player 0
2003-12-15 11:10:57 MainServer::HandleAnnounce Playback
2003-12-15 11:10:57 adding: craig.8010.co.uk as a player 0
2003-12-15 11:10:57 adding: craig.8010.co.uk as a remote ringbuffer
2003-12-15 11:10:57 Changing from None to WatchingLiveTV
Unknown video codec: ioctl VIDIOC_G_FMT: Invalid argument
audio volume set to '65535'
strange error flushing buffer ...
2003-12-15 11:11:02 Changing from WatchingLiveTV to None
------------------------------------------------

like I said I get audio so am presuming (perhaps falsely) that it's even
finding the channel info correctly...

so am left with this "unknown video codec".. don't know why that is
happening

if I type: mythtv <file>

and file is some avi somewhere.. it plays just fine... so am confused 
about the codec issue...

everything seems to work fine in other tv apps (xawtv.. experimented
with other pvr software etc etc)

so am hoping someone can point me in some kind of direction...

My system comprises of:

Matrox G450 Dual Head (am running everything on first head to be safe at
this point)
Athlon XP1800
AT7 Max2 MB
1Gb Ram
120Gb Drive
DVD-RW
CDRW
Hauppage WinTV PCI (old one with BT848 chipset)
etc etc

hope someone can help :)

TIA

Craig








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