Black & white and disturbed image

[decibel83]

Hi.

I'm setting up a Zoneminder system with a MDVA3000 capture card.
THe card is recognised by the bttv kernel module as UNKNOWN/GENERIC (card=0,autodetected) card, gpio: en=00000000, out=00000000 in=001fffff, but in Zoneminder I see a black & white and quite disturbed images.
The cameras ar colour, of course.

This is a screenshot of the image I get from the cameras:



This is the output of the bttv module when it is loading:

Code: Select all

Nov 27 15:25:09 venere kernel: bttv: driver version 0.9.16 loaded
Nov 27 15:25:09 venere kernel: bttv: using 8 buffers with 2080k (520 pages) each for capture
Nov 27 15:25:09 venere kernel: bttv: Bt8xx card found (0).
Nov 27 15:25:09 venere kernel: bttv0: Bt878 (rev 17) at 0000:05:00.0, irq: 66, latency: 32, mmio: 0xe81ff000
Nov 27 15:25:09 venere kernel: bttv0: using:  *** UNKNOWN/GENERIC ***  [card=0,autodetected]
Nov 27 15:25:09 venere kernel: bttv0: gpio: en=00000000, out=00000000 in=009fffff [init]
Nov 27 15:26:13 venere kernel: tveeprom 1-0050: Huh, no eeprom present (err=-121)?
Nov 27 15:26:13 venere kernel: bttv0: using tuner=-1
Nov 27 15:26:20 venere kernel: bttv0: i2c: checking for MSP34xx @ 0x80... not found
Nov 27 15:26:26 venere kernel: bttv0: i2c: checking for TDA9875 @ 0xb0... not found
Nov 27 15:26:32 venere kernel: bttv0: i2c: checking for TDA7432 @ 0x8a... not found
Nov 27 15:26:39 venere kernel: bttv0: i2c: checking for TDA9887 @ 0x86... not found
Nov 27 15:26:39 venere kernel: bttv0: registered device video0
Nov 27 15:26:39 venere kernel: bttv0: registered device vbi0

What's the problem?

Thank you very much for your help!
Bye.

[steve1611]

I also have this same issue with Black and White images only. My Cameras are PAL and i have the zoneminder source set to auto as this is the only way it works. I tested by also connecting an NTSC camera and i see that the image is now in colour so can only assume that the system drivers for the BT878 Card are set to NTSC. How can i set the Video card to PAL settings as once tgis is done i think that the camera will now operate in PAL and colour. Would appreciate details on how to configure BT878 driver to default to PAL system.

[jameswilson]

you need to tell your system what card you have so the driver can talk to it correctly. While the geniric driver will work sometimes, it rarly works 100%

[steve1611]

I found the answer and added these lines into modprobe.conf as i am running fedora.

#bttv
alias char-major-81 bttv
options bttv card=77

now my camera's work in colour - so my issue is resolved. I will try differant card numbers to see if i get a better performance.