Not tested with any kernel libre, only with kernels from Debian Wheezy (3.2.xxx) to Debian Jessie (3.16.7-2). The ATI Radeon RV200/M7 works well, but can not resume after a suspend to RAM. To be able to resume, you have to install the non-free Debian package "firmware-linux-nonfree". The included WiFi card is in my case too old to support WPA2 security feature, so I did not try it. I instead use a PCMCIA WiFi adapter (unfortunately with ndiswrapper), so the PCMCIA port is working. With all kernels tested, the trackpoint does not work (but I suspect that the problem comes from the last BIOS update I did). I did not tested the serial port at the back of the computer, nor the dock.