Capture Card seems to work but can't get images
Posted: Sun Apr 01, 2007 10:46 pm
Hello!
I just made a fresh Gentoo install for a new zoneminder setup an stumbled across some problems. I bought a cheap capture card providing 4 channels and one chip. The chipset used is bt878.
The card is recognized and I got a /dev/video0 which I can access using Zoneminder. But something seems to be wrong. Whenever I change the resolution higher than 320*240 the device goes red and that's it. But that is only the second problem I got.
The most disturbing thing is that I cannot get a good picture from the device. I tried different video norms and color modes and the best I got were blank or very distorted pictures.
To see if I did something wrong I just downloaded the live CD and tried this one. The results are not much better I managed to get a geometrically correct picture with distorted colours.
To see if the card is damaged I put it into a Windows PC and installed the software. The picture is o.k. there using the same input and the same camera.
What can I do?
I just made a fresh Gentoo install for a new zoneminder setup an stumbled across some problems. I bought a cheap capture card providing 4 channels and one chip. The chipset used is bt878.
The card is recognized and I got a /dev/video0 which I can access using Zoneminder. But something seems to be wrong. Whenever I change the resolution higher than 320*240 the device goes red and that's it. But that is only the second problem I got.
The most disturbing thing is that I cannot get a good picture from the device. I tried different video norms and color modes and the best I got were blank or very distorted pictures.
To see if I did something wrong I just downloaded the live CD and tried this one. The results are not much better I managed to get a geometrically correct picture with distorted colours.
To see if the card is damaged I put it into a Windows PC and installed the software. The picture is o.k. there using the same input and the same camera.
What can I do?