[mythtv-users] Unable to watch TV, display issue

Joshua Santelli santellij at yahoo.com
Wed May 28 07:43:20 EDT 2003


I might be missing something in the setup or
configuration process.  I'm running mythtv 0.8 on RH 9
(2.4.20-8, compiled locally).  When I start MythTV
frontend I can navigate the menu.  The picture,
although it runs off the sides a little, is pretty
crisp and clear.  When I select "watch TV" I get a
mangled, black and white, jittery picture...If I'm
lucky  (below is what is spit to the terminal)

I can see that mythtv backend is doing something
("NUV" file is being written) but I'm not sure where
the picture is getting twisted.  My first guess is
that it's the TV capture card.  (below is also a
selection from dmesg).  The ATI Wonder VE is connected
to my digital cable via  composite video cable.  

For the output I'm using the nvidia driver and
converting the VGA signal to NTSC (I think) with a
webcable (AITech). 

TIA,
josh

more hardware details: 
asus a7n266-vm, AMD 2100+ XP
512 PC 2100, 20 gig + 200 gig West. Dig. HDs (DMA
enables on both)
ati TV Wonder ve 
onboard (nvidia geforce 2) VGA out -> webcable (using
the S-vid output)

==================================
[ from terminal when watching tv starts ]

connecting to backend server: 192.168.1.4:6543
Unable to open mixer: '/dev/mixer'
Changing from None to WatchingLiveTV
open: No such device 

[repeats...]

open: No such device
player: Can't open audio device: /dev/dsp
Over/underscanning. V: 0.000000, H: 0.000000, XOff: 0,
YOff: 0
Using XV port 77
Changing from WatchingLiveTV to None
Changing from None to None

==============================
[ selection from dmesg ]

Linux video capture interface: v1.00
i2c-core.o: i2c core module
i2c-algo-bit.o: i2c bit algorithm module
bttv: driver version 0.7.96 loaded
bttv: using 4 buffers with 2080k (8320k total) for
capture
bttv: Host bridge is nVidia Corporation nForce CPU
bridge
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 01:08.0, irq: 5, latency: 64,
mmio: 0xf7800000
bttv0: detected: ATI TV Wonder/VE [card=64], PCI
subsystem ID is 1002:0003
bttv0: using: BT878(ATI TV-Wonder VE)
[card=64,autodetected]
i2c-core.o: adapter bt848 #0 registered as adapter 0.
bttv0: using tuner=19
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
i2c-core.o: driver i2c TV tuner driver registered.
tuner: probing bt848 #0 i2c adapter [id=0x10005]
tuner: chip found @ 0xc0
bttv0: i2c attach [client=Temic PAL* auto (4006
FN5),ok]
i2c-core.o: client [Temic PAL* auto (4006 FN5)]
registered to adapter [bt848 #0](pos. 0).
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: PLL: 28636363 => 35468950 ... ok

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