xawtv+saa7134 = ? : newbie's investigation

Two weeks ago I bought Lifeview FlyVideo 3000FM.
This made my life much more interesting.

I got kernel 2.4.20 from kernel.org + last snapshots of saa7134 and v4l2
patch. Everything was compiled and installed ok.

I load driver as "modprobe saa7134" without any options.
It seems to find just my card, so don't think I need any. Am I right?
v4l-info gives:

general info
    VIDIOC_QUERYCAP
        driver                  : "saa7134"
        card                    : "LifeView FlyVIDEO3000"
        bus_info                : "PCI:02:05.0"
        version                 : 0.2.8
        capabilities            : 0x5010015 [VIDEO_CAPTURE,VIDEO_OVERLAY,VBI_CAPTURE,TUNER,READWRITE,STREAMING]
[rest of list skipped]

I use last xawtv (3.89) via Xv extension.

Silly questions:
- Picture is grayscale. Here, in Russia, we use SECAM_D, but
changing between PAL/SECAM/NTSC in xawtv doesn't make any difference.
How to be more precise? Or problem is not here?

- Picture is.. erroneous? I attached two screenshots to show
(don't know if it's ok, so beg your pardon in advance). That's not the
the matter of tuning. If static picture is transmitted, everything is
_almost_ ok. Artefacts appear on motion pictures. Bug is
unusual, so think I miss something obvious.

- The only overlay mode works. Changing it to grabscreen results in
all black picture without any video-noise or motion.

I tried several x11 drivers: nv, nvidia (closed-source) and vesa. Nothing
changed. I haven't got DGA with them, so I cannot test xawtv in
DGA-mode. Framebuffer is also inaccessible to me, cause I couldn't
make fb work in mode with more then 8bpp.

Alexander
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