PVR-350 trouble: picture ist periodically getting darker

[Frank J. Beckmann]

Hi,

I got an brand new PVR-350 about 2 months ago. The card works flawless under 
Windows XP but I need to get it working under FreeBSD. I'm using FreeBSD/i386 
6.2-PRERELEASE from 4 days ago on the same box. I use the pvr-250 from the 
latest ports:

Dec 22 18:23:19 babylon kernel: cxm0: <Conexant iTVC15 MPEG Coder> mem 
0xc8000000-0xcbffffff irq 17 at device 7.0 on pci5
Dec 22 18:23:19 babylon kernel: cxm_iic0: <Conexant iTVC15 / iTVC16 I2C 
controller> on cxm0
Dec 22 18:23:19 babylon kernel: iicbb0: <I2C bit-banging driver> on cxm_iic0
Dec 22 18:23:19 babylon kernel: iicbus0: <Philips I2C bus> on iicbb0 
master-only
Dec 22 18:23:19 babylon kernel: iicsmb0: <SMBus over I2C bridge> on iicbus0
Dec 22 18:23:19 babylon kernel: smbus2: <System Management Bus> on iicsmb0
Dec 22 18:23:19 babylon kernel: cxm0: Philips FM1216ME MK3 tuner
Dec 22 18:23:19 babylon kernel: cxm0: SAA7115 rev 1 video decoder
Dec 22 18:23:19 babylon kernel: cxm0: MSP4418G-B3 audio decoder
Dec 22 18:23:19 babylon kernel: cxm0: IR Remote
Dec 22 18:23:19 babylon kernel: cxm0: [GIANT-LOCKED]
Dec 22 18:23:22 babylon kernel: cxm0: encoder firmware version 0x2050032
Dec 22 18:23:22 babylon kernel: cxm0: decoder firmware version 0x2020023

The trouble is that the picture gets periodically darker about 2 times a 
second. It almost looks like if a windmill were casting shadows. Another 
strange thing is that i often have to use "pvr250-setchannel -a off" or else 
I could not set the channel:

Dec 22 18:24:05 babylon kernel: cxm0: video decoder failed to lock
Dec 22 18:24:15 babylon kernel: cxm0: video decoder failed to lock

I hope that anybody can help me to this great card working.
-- 
Bye
Frank