[TriLUG] Mythtv - black screen when trying to watch tv

[Douglas Ward]

I have set up a Mythtv box running Mandriva 2007 and using a Hauppage PVR
350 capture card.  I have my cable line running directly into the tv input
on the card.  The card appears to initialize properly upon boot (see
below).  I can run cat /dev/video0 > test.mpg and watch good video/audio in
kafffeine.  In Mythtv I can connect to the backend database, run
mythfilldatabase and scan channels for Tuner 1.  When I try to watch tv or
record a program all I get is a black screen.  The watch tv option goes
black for three seconds and then exits.  I am using a 20" flat panel monitor
that the computer is plugged directly into.  I can see the desktop on the
monitor and would like to watch tv on top of kde (not using tv out).  When I
pick something out of the channel guide it records but mythtv says that it
doesn't exist in the play back screens.  Very strange.  Has anyone seen this
kind of behavior before?

[root at mythtv douglas]# dmesg | grep ivtv
ivtv:  ==================== START INIT IVTV ====================
ivtv:  version 0.7.0 (tagged release) loading
ivtv:  Linux version: 2.6.17-5mdv SMP mod_unload 686 gcc-4.1
ivtv:  In case of problems please include the debug info between
ivtv:  the START INIT IVTV and END INIT IVTV lines, along with
ivtv:  any module options, when mailing the ivtv-users mailinglist.
ivtv0: Autodetected Hauppauge WinTV PVR-350 card (cx23415 based)
ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0)
tda9887 0-0043: chip found @ 0x86 (ivtv i2c driver #0)
saa7115 0-0021: saa7115 found @ 0x42 (ivtv i2c driver #0)
saa7127 0-0044: saa7129 found @ 0x88 (ivtv i2c driver #0)
msp3400 0-0040: MSP4448G-A2 found @ 0x80 (ivtv i2c driver #0)
ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
ivtv0: loaded v4l-cx2341x-dec.fw firmware (262144 bytes)
ivtv0: Encoder revision: 0x02050032
ivtv0: Decoder revision: 0x02020023
ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
ivtv0: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB total)
ivtv0: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB total)
ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB
total)
ivtv0: Create encoder radio stream
ivtv0: Allocate DMA decoder MPEG stream: 16 x 65536 buffers (1024KB total)
ivtv0: Allocate DMA decoder VBI stream: 512 x 2048 buffers (1024KB total)
ivtv0: Create decoder VOUT stream
ivtv0: Allocate DMA decoder YUV stream: 24 x 43200 buffers (1024KB total)
ivtv0: loaded v4l-cx2341x-init.mpg firmware (155648 bytes)
ivtv0: Initialized Hauppauge WinTV PVR-350, card #0
ivtv:  ====================  END INIT IVTV  ====================