Hello,
i installed Debian testing from the netinst iso onto a Lenovo W530 laptop.
When booting the machine when it is attached to its docking station with closed display, i very often get the kernel message
ASPM: Could not configure common clock
and then the boot process hangs.
When i reboot with the opened display but still connected to the docking station, it boots successfully more often. And i never experienced this message and a hung boot process when the laptop is not attached to the docking station.
kernel: Linux laptop 4.5.0-2-amd64 #1 SMP Debian 4.5.4-1 (2016-05-16) x86_64 GNU/Linux
I also tried the stable dist which has a 3.16 kernel (iirc), but then the boot process hung after the following message: