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bttv tuner problem

Hi list,

while installing a pv951 tv-capture card I came across a problem that
probably has to do with the tuner. I can see all transmitted channels,
but only the lowest frequency (161.25 MHz) channel shows up correctly.
The picture for all higher-frequency channels is shaky in vertical
direction and shows noisy white-horizontal lines. Does anyone know what
causes this problem and how to correct it?

Thanks,

Joost


My setup: Ubuntu Dapper (kernel 2.6.15-20)

relevant dmesg output:

[4297741.704000] bttv: driver version 0.9.16 loaded
[4297741.704000] bttv: using 8 buffers with 2080k (520 pages) each for
capture
[4297741.706000] bttv: Bt8xx card found (0).
[4297741.706000] bttv0: Bt878 (rev 17) at 0000:00:0c.0, irq: 201,
latency: 32, mmio: 0xda001000
[4297741.706000] bttv0: using: ProVideo PV951 [card=42,insmod option]
[4297741.706000] bttv0: gpio: en=00000000, out=00000000 in=00ffffff
[init]
[4297741.706000] i2c-algo-bit.o: (0) scl=1, sda=1
[4297741.706000] i2c-algo-bit.o: (1) scl=1, sda=0
[4297741.706000] i2c-algo-bit.o: (2) scl=1, sda=1
[4297741.706000] i2c-algo-bit.o: (3) scl=0, sda=1
[4297741.706000] i2c-algo-bit.o: (4) scl=1, sda=1
[4297741.706000] i2c-algo-bit.o: bt878 #0 [sw] passed test.
[4297741.711000] bttv0: using tuner=29
[4297741.711000] bttv0: i2c: checking for TDA9875  (at)  0xb0... not found
[4297741.714000] bttv0: i2c: checking for TDA7432  (at)  0x8a... not found
[4297741.768000] bttv0: i2c: checking for TDA9887  (at)  0x86... not found
[4297741.795000] tuner 0-0060: All bytes are equal. It is not a TEA5767
[4297741.795000] tuner 0-0060: chip found  (at)  0xc0 (bt878 #0 [sw])
[4297741.795000] tuner 0-0060: type set to 29 (LG PAL_BG (TPI8PSB11D))
[4297741.837000] bttv0: registered device video0
[4297741.837000] bttv0: registered device vbi0
[4297741.838000] bttv0: PLL: 28636363 => 35468950 .. ok
[4297747.444000] bttv0: PLL can sleep, using XTAL (28636363).
[4297747.587000] bttv0: PLL: 28636363 => 35468950 .. ok

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