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

[Byarlay, Wayne A.]

I've seen that behavior before, but only when trying to watch stuff on
the TV OUT.

Although you're using Mandriva 2007 (whatever that is), I'd recommend
the Knoppmyth wiki or forums. Especially the forums, for
troubleshooting.
www.mysettopbox.tv is the home for Knoppmyth. Somewhere there's a link
to the forums.

Good luck!



-----Original Message-----
From: trilug-bounces at trilug.org [mailto:trilug-bounces at trilug.org] On
Behalf Of Douglas Ward
Sent: Saturday, March 31, 2007 8:09 AM
To: TriLUG User Group
Subject: [TriLUG] Mythtv - black screen when trying to watch tv

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  ====================
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