Well, one of those threads you saw was probably just me being a dumbass, I had enabled the VDR options and something went wrong with the devices giving me errors on every boot. And disabeling those options again didn't help, so I panicked a bit. In the end it turned out I could easily remove those devices manualy from the device tree. It was a nice learning experience for me, but doesn't actually say much about the VDR support. At least it's some sort of description on what to do when things get messed up a bit, like I managed to do. Unfortunately that's all the experience I have with VDR so far.
I wouldn't mind having another stab at it since I can't seem to get MythTV to work anyway (TV is not high on my list).