I managed to get Comhem's card working in DM8000 with CCcam 2.0.11/NewCS 1.65
Do not use CCcam 2.1.0, it's buggy (I got Segmentation fault and Card init fail with it too). Get CCcam 2.0.11 and NewCS 1.65 binaries from the blue panel and their respective configs too.

Then setup camd to CCcam 2.0.11/NewCS 1.65 and restart the camd. If you still don't get the image remove the card and restart the box without it. After it started correctly put the card in, switch the channels and wait for the picture.