All those issues regarding sound cards and lv2 plug-ins right now. This all mean it will take time until Ardour3 (stable) come out and udev fixes and updates? I tried to figure out the differences between my fedora and arch boxes, I cound not find an easy explanation why the firewire soundcard works on fedora and not on arch. I tried different kernels (including lts), udevs and everything I could think of, including editing the rules.d folder. Or we can try some kind of concentrated effort to find and fix those problems (specially sound card problems) until they hit more users? Sorry, maybe that's just a couple of us, one or two people. I don't really know how many.