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: thinkpad_acpi: unsupported brighten interface, please contaxt ibm-acpi-de...@sf.net I think it is not the common clock which is the problem, but how can i find out what is really the problem? Thanks in advance Joysn