Help - why only the last 1/10th of image captured??

almost-working · Post by **almost-working** » Sat Aug 30, 2008 12:52 pm

Hi all

First thank you to the ZM dev team - amazing product

Im having some trouble getting my cameras setup correctly.

They appear to just be getting the lower 10th of the image

Any helps/hints to get the rest of the image appreciated!

Thank you

Setup:-
Gentoo
4 into 1 787a pci card
NTSC cams - recording in 320x240 res
No errors or other problems in the logs,
DMESG bttv setup :-
bttv: driver version 0.9.17 loaded
bttv: using 8 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 0000:05:04.0, irq: 16, latency: 66, mmio: 0xf8d00000
bttv0: using: GrandTec Multi Capture Card (Bt878) [card=77,insmod option]
bttv0: gpio: en=00000000, out=00000000 in=00f36fff [init]
bttv0: tuner absent
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: PLL: 28636363 => 35468950 .. ok
bttv0: PLL can sleep, using XTAL (28636363).

neilk · Post by **neilk** » Sun Aug 31, 2008 1:45 am

are you ment to be running NTSC or something else?
i get the same when i fiirst set a box up because ZM always sets NTSC when i need PAL

also it may have to do with your modprobe.conf settings

almost-working · Post by **almost-working** » Sun Aug 31, 2008 6:56 am

Abit more info

The card I have is Unidentified UCC4 (probably aka TE104 or TE-104, aka Diginet UCC4 ?, Pico 2000, Pico2000) (from bttv gallery)

Tried connecting one of the camera's to the TV via a hifi system - the picture was great - no issues at all...

Did a bit more testing with the cameras connected to the computer, changed ZM_CAPTURES_PER_FRAME from 1 to 6 and disconnected and reconnected the cameras.

Now the image alternates between this:

and this:

Is there a name for this issue? Looks like its a sync issue - where the card doesnt realise that the frame continues and thinks its a new frame (when its not)

almost-working · Post by **almost-working** » Sun Aug 31, 2008 6:57 am

neilk wrote:are you ment to be running NTSC or something else?
i get the same when i fiirst set a box up because ZM always sets NTSC when i need PAL

also it may have to do with your modprobe.conf settings

Well anything but NTSC results in a garbled picture - im assuming that means its meant to be NTSC?

almost-working · Post by **almost-working** » Sun Aug 31, 2008 7:08 am

SOLVED

Okay im an idiot!

Changed them to PAL and they're working great - I must have had different options on different channels causing the garbage when I tried PAL previously.

!!

Yay

Viper_iii · Post by **Viper_iii** » Tue Sep 02, 2008 5:32 pm

Another Simple fix...

Delete the monitor and re-add...

done... stabilized image no problem.