[mythtv-users] Blank screen on live TV in CVS

[Seth Heckard]

I previously had Myth working with version 0.11 and a bttv card.
However, I picked up one of those ebay Hauppauge Freestyle cards.
I got it to work with 0.11, but I tried compiling and installing
CVS to play with the new profile support.

Everything seems to play nice until I go to Live TV.  I get a
blank screen, and Myth doesn't respond to any keypresses.  I
searched the lists, and came up with replies saying I have a
problem with /dev/dsp (don't to the best of my knowledge), or
that I told myth my PVR card is actually a V4L card (it is set up
as a MPEG2 card in the setup program.)

Here's the output from mythbackend:

sdh at apollo:~$ mythbackend -v all
Starting up as the master server.
2003-10-01 00:18:33 Probed: /dev/video0 - Composite 0
2003-10-01 00:18:33 Probed: /dev/video0 - Composite 1
2003-10-01 00:18:33 Probed: /dev/video0 - Composite 2
2003-10-01 00:18:33 Probed: /dev/video0 - Composite 3
2003-10-01 00:18:33 Probed: /dev/video0 - Tuner 0
2003-10-01 00:18:33 Probed: /dev/video0 - Composite 4
2003-10-01 00:18:33 Probed: /dev/video0 - S-Video 0
2003-10-01 00:18:33 Probed: /dev/video0 - S-Video 1
2003-10-01 00:18:33 Probed: /dev/video0 - S-Video 2
2003-10-01 00:18:33 Probed: /dev/video0 - S-Video 3
2003-10-01 00:18:33 Probed: /dev/video1 - Television
2003-10-01 00:18:33 Probed: /dev/video1 - Composite1
2003-10-01 00:18:33 Probed: /dev/video1 - S-Video
2003-10-01 00:18:33 Probed: /dev/video1 - Composite3
2003-10-01 00:18:34 Enabled verbose msgs :all
--- print list start ---
Title                 Chan  ChID  StartTime       S I C -- C R D S Rank Total
---  print list end  ---
2003-10-01 00:18:36 Found changes in the todo list.
2003-10-01 00:19:00 MainServer::HandleAnnounce Playback
2003-10-01 00:19:00 adding: apollo as a player 1
2003-10-01 00:19:00 2       OK
2003-10-01 00:19:00 27      1[]:[]192.168.0.10[]:[]6543
2003-10-01 00:19:00 MainServer::HandleAnnounce Playback
2003-10-01 00:19:00 adding: apollo as a player 0
2003-10-01 00:19:00 2       OK
2003-10-01 00:19:00 89      rbuf://192.168.0.10:6543/mnt/mythtv//ringbuf1.n...
2003-10-01 00:19:00 MainServer::HandleAnnounce Playback
2003-10-01 00:19:00 adding: apollo as a player 0
2003-10-01 00:19:00 2       OK
2003-10-01 00:19:00 adding: apollo as a remote ringbuffer
2003-10-01 00:19:00 2       OK
2003-10-01 00:19:00 Changing from None to WatchingLiveTV
2003-10-01 00:19:00 Using profile 'Live TV' to record
Error setting codec params
VIDIOC_S_CTRL:: Invalid argument

sdh at apollo:~$ mythfrontend -v all
2003-10-01 00:18:56 Enabled verbose msgs :all
connecting to backend server: 192.168.0.10:6543
2003-10-01 00:19:00 21      ANN Playback apollo 1
2003-10-01 00:19:00 17      GET_FREE_RECORDER
2003-10-01 00:19:00 21      ANN Playback apollo 0
2003-10-01 00:19:00 44      QUERY_RECORDER 1[]:[]SETUP_RING_BUFFER[]:[]0
2003-10-01 00:19:00 21      ANN Playback apollo 0
2003-10-01 00:19:00 23      ANN RingBuffer apollo 1
2003-10-01 00:19:00 33      QUERY_RECORDER 1[]:[]SPAWN_LIVETV

While I do have both video capture cards (video0 is the PVR 250,
video1 is the bttv card) enabled, I've tried it with only the PVR
card with no success.  My kernel is 2.4.22, compiled with the
v4l2 patches, and I am using the decoder-alpha version of ivtv
from Monday.  It worked fine in 0.11, and I can capture all day
from /dev/video0.  Both backend and frontend are the same
machine.  I have tried upgrading my 0.11 database to CVS first,
then later dropped the database and reloaded from scratch.
Neither worked.  Let me know if you need any other info, thanks.

-- 
Seth Heckard / sdh at csociety.org