Package: linux-image-4.1.0-0.bpo.1-kirkwood Version: 4.1.3-1~bpo8+1 After installing this Linux kernel on my QNAP TS-219P II, qcontrol no longer works: 1. The status LED remains in red/green blink mode (as set by the boot loader). It should be set to solid green when the kernel is loaded. 2. The buzzer does not buzz. It should buzz when the kernel is loaded and when the kernel is shutting down. Removing and reinstalling the qcontrol package did not help. Solely reverting to the debian jessie kernel 3.16.7-ckt11-1+deb8u3 fixes these problems, i.e. the LED status is correctly set and the buzzer buzzes again. Best Regards, Robert Schlabbach