It happens for me too. It must be a kernel problem, not a kdetv one, since it's weird that a single user program can mess the whole system like this.
This bug was present too in debian unstable one year ago. 02:03.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 02:03.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) -- kdetv sometimes failes to release v4l resources https://launchpad.net/bugs/84563 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
