[Fedora-music-list] No output from Focusrite Scarlett with kernel 4.x

I do not get any audio output with my Focusrite Scarlett 18i8 with any of the 4. kernels from Fedora or CCRMA. The audio input works and all the audio I/O ports are visible in jack and pulseaudio. Audio output still works with kernel 3.18.9-201.rt5.1.fc21.ccrma.x86_64, the only 3. kernel left on my computer. Where should I submit this bug? Thanks, Jeff