[mythtv-users] Fwd: Mythtv - black screen when trying to watch tv on computer

Douglas Ward binaryflow at gmail.com
Sun Apr 1 14:15:46 UTC 2007


Hello everyone, new user here.  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.  I can see
the video in the /home/recordings directory.  Very strange.  Has anyone seen
this kind of behavior before? What am I doing wrong?  I appreciate any
suggestions.

[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  ====================
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